Welcome to the Math Salamanders Prime Numbers Chart page.

Search for your own prime numbers, find the factors of a number and
print out some of our pre-prepared prime number lists here.

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What is a prime number?

- A prime number is a number that is only divisible by itself and 1.
- It must also be greater than one.

Another way of saying this is that the only factors of a prime number are 1 and the number itself.

Find Prime Numbers Calculator

Input any value into our Find Prime Numbers Calculator and it will find all the primes up to and including your value.

You can then take this information and copy and paste it into a prime numbers chart somewhere else if you wish!

Prime Numbers Calculator Output

Prime Numbers Charts pre-prepared

We have several pre-prepared prime number charts for you to print.

The first three charts features all the numbers up to a given value, with the prime numbers highlighted.

The following chart only give the prime numbers themselves on a single page for quick reference.

Prime Numbers Charts to ...

Prime Numbers Lists

Our Prime Numbers List page is similar to the prime number charts on this page but contains charts giving the first ... set of prime numbers.

We have charts showing ...

- the first 100 primes
- the first 200 primes
- the first 500 primes
- the first 1000 primes

There is also a Prime Number Tester which will tell you whether or not a given number is prime and tell you all the factors of that number.

Sieve of Erastosthenes

The Sieve of Erastosthenes is a method for finding what is a prime numbers between 2 and any given number.

Eratosthenes was a Greek mathematician (as well as being a poet, an astronomer and musician) who lived from about 276BC to 194BC.

If you want to find out more about his sieve for finding primes, and print out some Sieve of Eratosthenes worksheets, use the link below.

Want to find out more about primes?

Take a look at our Prime Number page which clearly describes what a prime numbers is and what they are not.

There are also many different questions about prime numbers answered, as well as information about the density of primes.

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