To determine if 715 is a prime number or a composite number, we simply look at the factors for 715.
If the factors of 715 are only 715 and 1, then we know that 715 is a prime number. Otherwise, 715 is a composite number.
To explain better, if 715 is only divisible by 1 and 715, then it is a prime number, and if 715 is divisible by more than 715 and 1, then it is a composite number.
The factors of 715 are as follows:
1, 5, 11, 13, 55, 65, 143, 715
Therefore, since 715 is divisible by more than one and itself, the answer to the
question "Is 715 prime or composite?" is highlighted in blue below.
composite
Is 716 prime or composite?
OK. Now you know that 715 is a composite number. Use our logic above and see if
you can figure out if the next number on our list is prime or composite before you check your answer.
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