To determine if 69 is a prime number or a composite number, we simply look at the factors for 69.
If the factors of 69 are only 69 and 1, then we know that 69 is a prime number. Otherwise, 69 is a composite number.
To explain better, if 69 is only divisible by 1 and 69, then it is a prime number, and if 69 is divisible by more than 69 and 1, then it is a composite number.
The factors of 69 are as follows:
1, 3, 23, 69
Therefore, since 69 is divisible by more than one and itself, the answer to the
question "Is 69 prime or composite?" is highlighted in blue below.
composite
Is 70 prime or composite?
OK. Now you know that 69 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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