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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,

A prime number can be divided, without a remainder, only by itself and by 1.

Example: 11 is a prime number because the only numbers it can be divided by
evenly is 1 and 11


What is Composite Number:  Composite numbers has
more than two factors.

example

composite numbers example
 

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

Note: 1 is not prime or composite. It only has one factor. (1 )