HELP MATHS
PRIME NUMBERSWHAT IS A PRIME NUMBER?
A prime number is a positive integer (natural number) that has exactly two factors, 1 and itself.
1 is not a prime number, it has ONLY one factor.
HOW CAN YOU FIND PRIME NUMBERS?
Step by step
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The rule for working out prime numbers is really simple, but there is not a formula for telling you if a big
number is a prime number. If a number is really big it can take years to work out if it is a prime number.