To determine if 156 is a prime number or a composite number, we simply look at the factors for 156.
If the factors of 156 are only 156 and 1, then we know that 156 is a prime number. Otherwise, 156 is a composite number.
To explain better, if 156 is only divisible by 1 and 156, then it is a prime number, and if 156 is divisible by more than 156 and 1, then it is a composite number.
The factors of 156 are as follows:
1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
Therefore, since 156 is divisible by more than one and itself, the answer to the
question "Is 156 prime or composite?" is highlighted in blue below.
composite
Is 157 prime or composite?
OK. Now you know that 156 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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