To determine if 658 is a prime number or a composite number, we simply look at the factors for 658.
If the factors of 658 are only 658 and 1, then we know that 658 is a prime number. Otherwise, 658 is a composite number.
To explain better, if 658 is only divisible by 1 and 658, then it is a prime number, and if 658 is divisible by more than 658 and 1, then it is a composite number.
The factors of 658 are as follows:
1, 2, 7, 14, 47, 94, 329, 658
Therefore, since 658 is divisible by more than one and itself, the answer to the
question "Is 658 prime or composite?" is highlighted in blue below.
composite
Is 659 prime or composite?
OK. Now you know that 658 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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