To determine if 68 is a prime number or a composite number, we simply look at the factors for 68.
If the factors of 68 are only 68 and 1, then we know that 68 is a prime number. Otherwise, 68 is a composite number.
To explain better, if 68 is only divisible by 1 and 68, then it is a prime number, and if 68 is divisible by more than 68 and 1, then it is a composite number.
The factors of 68 are as follows:
1, 2, 4, 17, 34, 68
Therefore, since 68 is divisible by more than one and itself, the answer to the
question "Is 68 prime or composite?" is highlighted in blue below.
composite
Is 69 prime or composite?
OK. Now you know that 68 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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