# Prime Number Calculator

## World's Simplest Number Tool

Quickly calculate a list of prime numbers in your browser. To get your list, just specify the starting value and the number of primes you need in the options below, and this utility will generate that many prime numbers. Created by developers from team Browserling.

Tool Options

#### Starting Prime and Quantity

Prime numbers start from this value.
Generate this many prime numbers.

#### Prime Number Separator

Place this symbol between prime numbers. (By default a line break.)

## What Is a Prime Number Calculator?

This is an online browser-based utility for calculating a sequence of prime numbers. All integers (except 0 and 1) have at least two divisors – 1 and the number itself. Numbers that have only these two divisors are called primes. In this tool, you can specify how many primes you need, set the minimum value, and the tool will generate all prime numbers that are greater than or equal to this value. You can also customize the output list of prime numbers by specifying a symbol to place between them. That's numberwang!

## Prime Number Calculator Examples

Click to try!
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### First 100 Prime Numbers

In this example, we generate the first 100 prime numbers. The sequence of primes begins with the number 2 and continues to number 541 (the 100th value). The prime separator is set to a space.

2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97 101 103 107 109 113 127 131 137 139 149 151 157 163 167 173 179 181 191 193 197 199 211 223 227 229 233 239 241 251 257 263 269 271 277 281 283 293 307 311 313 317 331 337 347 349 353 359 367 373 379 383 389 397 401 409 419 421 431 433 439 443 449 457 461 463 467 479 487 491 499 503 509 521 523 541
Required options
These options will be used automatically if you select this example.
Prime numbers start from this value.
Generate this many prime numbers.
Place this symbol between prime numbers. (By default a line break.)
click me

### Eight-digit Primes

In this example, we generate six eight-digit primes. We specify the starting value to be 10,000,000 but because it is not a prime, the tool finds the nearest following prime (10000019) and puts it as the first value in the sequence.

10000019 10000079 10000103 10000121 10000139 10000141
Required options
These options will be used automatically if you select this example.
Prime numbers start from this value.
Generate this many prime numbers.
Place this symbol between prime numbers. (By default a line break.)

### Pro tipsMaster online number tools

You can pass options to this tool using their codes as query arguments and it will automatically compute output. To get the code of an option, just hover over its icon. Here's how to type it in your browser's address bar. Click to try!

https://onlinetools.com/number/calculate-prime-numbers?start=2&count=100&separator=%20

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Quickly generate numbers of say what you see sequence.
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Quickly generate Fibonacci-like series with custom start values.
Quickly calculate members of a linear recurrence series.
Quickly create a sequence of prime numbers.
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Quickly compute all prime factors of a number.
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Quickly create a list of increasing or decreasing integers.
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Quickly create a list of squares.
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Quickly sort numbers in ascending or descending order.
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Quickly randomize the order of digits in a number.
Quickly filter numbers according to certain criteria.
Quickly add up all the numbers in the given list and find their sum.
Quickly multiply all the numbers together and find their product.
Quickly add up all the digits of the given numbers.
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Quickly sum up all the fractions in the given list and find their total.
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Quickly create a diagonal matrix with ones on the main diagonal.
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Quickly convert a number to the form 2^x.
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Quickly add digits to a number so that it becomes a palindrome.
Quickly test if the given numbers are palindromes.

### Coming Soon

These number tools are on the way!
Generate Numberwang Numbers

Create a list of numberwang numbers.

Generate Magic Numbers

Create a list of neat looking numbers.

Draw a Number as Color Spectrum

Visualize a number by drawing its digits as a color gradient.

Draw a Magic Square

Create a matrix of numbers with rows and cols having same sum.

Rewrite Numbers

Given numbers and a grammar, recursively rewrite them.

Create a Floating Point Number

Create a number from the mantissa, base, and exponent.

Visualize a Floating Point Number

Show how a fp number is represented in a computer.

Convert a Number to the Scientific Notation

Convert a number to the a×10<sup>b</sup> form.

Convert Scientific Notation to a Number

Convert a number in scientific notation to a regular number.

Generate Unary Numbering

Create a list of unary numbers (1, 11, 111, 1111, …).

Generate Symbolic Numbering

Create a list of alphabetic numbers (a, b, c, …, z, aa, ab, …).

Generate Roman Numbering

Create a list of Roman numbers (i, ii, iii, iv, v…).

Generate Braille Numbering

Create a list of Braille numbers (⠂, ⠆, ⠒, ⠲, ⠢, …).

Generate Random Binary Numbers

Create a list of random binary numbers.

Generate Random Octal Numbers

Create a list of random octal numbers.

Generate Random Decimal Numbers

Create a list of random decimal numbers.

Generate Random Hex Numbers

Create a list of random hexadecimal numbers.

Calculate a Running Sum

Calculate a cumulative sum of a list of numbers.

Calculate a Running Difference

Calculate a cumulative difference of a list of numbers.

Calculate a Running Product

Calculate a cumulative product of a list of numbers.

Calculate Number Quotient

Divide two numbers and find their quotient.

Calculate Digit Quotient

Divide the digits of the given number.

Calculate the Factorial

Find the factorial of a number.

Calculate the Average

Find the average of multiple numbers.

Calculate the Mean

Find the mean of multiple numbers.

Calculate the Mode

Find the mode of multiple numbers.

Create Number Anagrams

Create one or more anagrams of a number.

Generate Number Bigrams

Create a list of digit bigrams from a number.

Generate Number Trigrams

Create a list of digit trigrams from a number.

Generate Number N-grams

Create a list of digit ngrams from a number.

Generate a Polynomial Sequence

Create a list of polynomial progression numbers.

Generate SI Prefixes

Create a list of metric prefixes.

Analyze a Number

Report how many digits appear how many times.

Convert a Number to an Ordinal

Convert a cardinal number to an ordinal number.

Convert an Ordinal to a Number

Convert an ordinal number to a cardinal number.

Convert a Number to Roman Number

Convert Arabic numerals to Roman numerals.

Convert a Roman Number to Regular Number

Convert Roman Numerals to Arabic numerals.

Generate Negafibonacci Numbers

Calculate a series of extended Fibonacci numbers.

Generate Fibonacci Primes

Find numbers that are both Fibonacci numbers and primes.

Fibonacci Number Test

Check if a number is a Fibonacci number.

Fibonacci Prime Test

Check if a number is both a Fibonacci number and a prime.

Construct Fibonacci Words

Create a sequence of Fibonacci words.

Construct Tribonacci Words

Create a sequence of Tribonacci words.

Construct Tetranacci Words

Create a sequence of Tetranacci words.

Construct Pentanacci Words

Create a sequence of Pentanacci words.

Generate Negalucas Numbers

Calculate a series of extended Lucas numbers.

Generate Lucas Primes

Calculate a series of extended Lucas numbers.

Lucas Prime Test

Check if a number is both a Lucas number and a prime.

Generate Moser de Bruijn Numbers

Calculate a sequence of Moser-Bruijn numbers.

Generate Kolakoski Numbers

Calculate a sequence of Oldenburger-Kolakoski numbers.

Generate Stanley Numbers

Calculate a sequence of Stanley numbers.

Generate Gijswijt Numbers

Calculate a sequence of self-describing Gijswijt numbers.

Generate Rudin-Shapiro Numbers

Calculate a sequence of Rusin-Shapiro numbers.

Generate Baum-Sweet Numbers

Calculate a sequence of Baum-Sweet numbers.

Generate Thue-Morse Sequence

Calculate members of Thue-Morse number series.

Generate Perfect Numbers

Create a list of perfect numbers.

Generate Almost Perfect Numbers

Create a list of almost perfect numbers.

Generate Excessive Number Sequence

Calculate a sequence of abundant numbers.

Generate Deficient Number Sequence

Calculate a sequence of deficient numbers.

Calculate Dragon Curve Numbers

Generate a list of paperfolding sequence numbers.

Generate Composite Numbers

Create a list of numbers that are not prime.

Draw a Number on an LCD

Generate an LCD display that shows the given number.

Draw a Numbers Table

Generate a table of numbers.

Test If a Number Is Perfect

Check if the given number is a perfect number.

Test If a Number Is Abundant

Check if the given number is an abundant number.

Test If a Number Is Deficient

Check if the given number is a deficient number.

Calculate the Modulo

Find the modulus of a number.

Group Number Digits

Group together digits of a number.

Split a Number into Digits

Create a list of digits from a number.

Printf Numbers

Apply sprintf or printf function to numbers.

Create Zalgo Numbers

Repeat a Number

Repeat a number multiple times.

Mirror a Number

Create a mirror copy of a number.

Reverse a Number

Reverse the order of digits of a number.

Rotate a Number

Cyclically rotate digits of a number to the left or right.

Increase a Number

Add one to the given number.

Increase All Digits in a Number

Add one to every digit in a number.

Decrease a Number

Subtract one from the given number.

Decrease All Digits in a Number

Subtract one from every digit in a number.

Find Patterns in Numbers

Discover patterns in sequences of numbers.

Count Number Occurrences

Find how often numeric values occur.

Calculate Percentages

Find x% of a number.

Generate Custom Numbers

Create numbers of arbitrary length and properties.

Print Googol

Print the Googol/Google number, which is 10<sup>100</sup>.

Generate the Biggest Number

Print the biggest number in the world.

Generate Big Numbers

Create a list of big numbers.

Generate the Smallest Number

Print the smallest number in the world.

Generate Small Numbers

Create a list of small numbers.

Generate Natural Numbers

Create a list of natural numbers.

Generate Rational Numbers

Create a list of rational numbers.

Generate Constant Sequence

Create a series of numbers where all terms are the same.

Generate Real Numbers

Create a sequence of real numbers.

Generate Complex Numbers

Create a list of complex numbers.

Generate Binary Numbers

Create a sequence of binary numbers.

Generate Pairs of Numbers

Create a sequence of number pairs.

Generate Triples of Numbers

Create a sequence of number triples.

Generate Tuples of Numbers

Create a sequence of number n-tuples.

Generate a Short Number

Create a number with not that many digits.

Generate a Long Number

Create a number with many digits.

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Interweave two or more number digit-by-digit.

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Rewrite a number in the decimal representation.

Convert a Fraction to a Decimal

Convert a fraction to a decimal number.

Convert a Decimal to a Fraction

Convert a decimal number to a fraction.

Convert a Binary Number to Octal Number

Convert a base two number to base eight number.

Convert a Binary Number to Decimal Number

Convert a base two number to base ten number.

Convert a Binary Number to Hex Number

Convert a base two number to base sixteen number.

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Convert a base eight number to base two number.

Convert a Octal Number to Decimal Number

Convert a base eight number to base ten number.

Convert a Octal Number to Hex Number

Convert a base eight number to base sixteen number.

Convert a Decimal Number to Binary Number

Convert a base ten number to base two number.

Convert a Decimal Number to Octal Number

Convert a base ten number to base eight number.

Convert a Decimal Number to Hex Number

Convert a base ten number to base sixteen number.

Convert a Hex Number to Binary Number

Convert a base sixteen number to base two number.

Convert a Hex Number to Octal Number

Convert a base sixteen number to base eight number.

Convert a Hex Number to Decimal Number

Convert a base sixteen number to base ten number.

Convert Any Number to Any Base

Convert any number in any base to any other base.

Change Number's Mantissa

Change the significand of a number.

Change Number's Exponent

Change the power of a number.

Replace Digits with Letters

Replace digits in a number with alphabet letters.

Create a Number Spiral

Form a spiral from the digits of a number.

Create a Number Circle

Form a circle from the digits of a number.

Create a Number Tree

Form a tree from the given numbers.

Create a Number Digit Tree

Form a tree from the digits of a number.

Remove Decimal Point

Remove the decimal separator from a decimal number.

Modify numbers so they are almost the same but have errors.

Create Number Typos

Generate various number typos.

Change Number Font

Write numbers in a different font.

Generate Bold Numbers

Write numbers in a bold font.

Generate Underline Numbers

Write numbers with an underline below them.

Generate Strikethrough Numbers

Write numbers with a strikethrough on them.

Generate Superscript Numbers

Write numbers in a superscript font.

Generate Subscript Numbers

Write numbers in a subscript font.

Create Fake Numbers

Change digits in a number to Unicode look-alikes.

Perturb Numbers

Change the given numbers a little bit.

Perturb Number Digits

Change the digits of the given numbers a little bit.

Find Entropy of a Number

Calculate the complexity (entropy) of a number.

Numberwang Number Test

Test if the given number is numberwang.

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