A prime number is number greater than one that is only divisble by one and itself.

en.wikipedia.org/wiki/Prime_number

A prime number (or a prime) is a natural number greater than 1 that has no
positive divisors other than 1 and itself. A natural number greater than 1 that is
not a ...

www.factmonster.com/math/numbers/prime.html

Prime Numbers. A prime number can be divided, without a remainder, only by
itself and by 1. For example, 17 can be divided only by 17 and by 1. Some facts:.

www.khanacademy.org/math/pre-algebra/pre-algebra-factors-multiples/pre-algebra-prime-numbers/v/prime-numbers

Prime numbers are numbers that are only divisible by themselves and 1. Learn
more about their properties, and see some examples.

www.mathsisfun.com/prime_numbers.html

Prime Numbers Chart and Calculator. A Prime Number can be divided evenly
only by 1 or itself. And it must be a whole number greater than 1. Here is a list of
all ...

whatis.techtarget.com/definition/prime-number

What is a prime number? This definition explains what a prime number is and
lists examples. See also different types of primes and links to information about ...

mathworld.wolfram.com/PrimeNumber.html

For example, the only divisors of 13 are 1 and 13, making 13 a prime number,
while the number 24 has divisors 1, 2, 3, 4, 6, 8, 12, and 24 (corresponding to the
...

primes.utm.edu/lists/small/1000.txt

www-groups.dcs.st-and.ac.uk/history/HistTopics/Prime_numbers.html

Euclid also showed that if the number 2<sup>n</sup> - 1 is prime then the number 2<sup>n-1</sup>(2<sup>n</sup> - 1
) is a perfect number. The mathematician Euler (much later in 1747) was able to ...

primes.utm.edu/

Access to hundreds of pages of award-winning information on prime numbers--
with links to thousands of pages elsewhere. We host the searchable database of
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