To determine if 308 is a prime number or a composite number, we simply look at the factors for 308.
If the factors of 308 are only 308 and 1, then we know that 308 is a prime number. Otherwise, 308 is a composite number.
To explain better, if 308 is only divisible by 1 and 308, then it is a prime number, and if 308 is divisible by more than 308 and 1, then it is a composite number.
The factors of 308 are as follows:
1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308
Therefore, since 308 is divisible by more than one and itself, the answer to the
question "Is 308 prime or composite?" is highlighted in blue below.
composite
Is 309 prime or composite?
OK. Now you know that 308 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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