What are prime and composite numbers?

Which of the following numbers are composite or prime: 67, 85, 71, 326, 213, 367

Answers
prime numbers being those that can only be divided by themselves and 1
chloe
06 April 2011
67 - prime
chloe
06 April 2011
326 - is a composite, can be divided by 3 and 2
chloe
06 April 2011
71 is a prime number
chloe
06 April 2011
85 is composite because it can be divided by 5
chloe
06 April 2011
367 is prime
chloe
06 April 2011
213 can be divided by 3 so it's composite
chloe
06 April 2011
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