Subject: prime numbers

Hi. I have a real stupid question

What are prime numbers?

My name is Jack and I am in grade 5.

I am typing this on my neighbours computer

Jack, your question is far from stupid; it is very important. Prime numbers are special integers (counting numbers) that don't have divisors bigger than 1 other than themselves.

The primes are 2,3,5,7,11,13,17,19,23,19,31,37, ....

There are infinitely many of them. You should check that other small numbers are not prime -- for example 2 goes into 4 or 6 or 8 and so on so that 4, 6, ... are not primes. Another example, 35 is not prime since it is 5 times 7.

Mathematicians are interested in the prime numbers because they form the building blocks for the natural numbers in the same way that atoms form the building blocks for more complex molecules. Every natural number can be factored into a product of prime numbers, the prime numbers being the indivisible "atoms" of our number system.

Hope this helps!

Penny

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