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.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

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 the prime numbers up to 1,000: ...

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

Except for 0 and 1, a number is either a prime number or a composite number. A
composite number is defined as any number, greater than 1, that is not prime.

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 ...

www.virtualnerd.com/middle-math/number-theory-fractions/factors-prime/prime-number-definition

Note: Prime numbers aren't too hard to define, but they still puzzle professional
mathematicians. Believe it or not, all over the word computers are chugging away
...

mathforum.org/dr.math/faq/faq.prime.num.html

What is a prime number? How can you find prime numbers? What's the 'Sieve of
Eratosthenes'? How can you decide if a number is prime? What's the largest ...

www.mathplayground.com/howto_primenumbers.html

Math video explains what a prime number is. ... advertisement. Math Video How
to Recognize Prime Numbers. advertisement. Math Games and Activities ...

www.ask.com/youtube?q=What Is a Prime Number?&v=9pgA-H77BLc

Nov 1, 2009 ... Click here for the full version: http://vn2.me/zut Prime numbers aren't too hard to
define, but they still puzzle professional mathematicians.