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> Prime and Composite Numbers
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What is a Prime Number? A Prime number is a
whole number that has two factors, one and itself,
whole number that has two factors, one and itself,
Example: 11 is a prime number because the only
numbers it can be divided by evenly is 1 and 11
numbers it can be divided by evenly is 1 and 11
Factor? Factors are the numbers you multiply together to get
another number: Example1: 1 and 5 are factors of 5 1x5=5
example2: 3 and 4 are factors of 12 3x4=12
another number: Example1: 1 and 5 are factors of 5 1x5=5
example2: 3 and 4 are factors of 12 3x4=12
What is Composite Number: Composite numbers has more
than two factors.
than two factors.
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Note: 1 is not prime
or composite. It only
has one factor. (1 )
or composite. It only
has one factor. (1 )
A prime number can be divided, without a remainder, only by
itself and by 1.
itself and by 1.
example
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