To determine if 137 is a prime number or a composite number, we simply look at the factors for 137.
If the factors of 137 are only 137 and 1, then we know that 137 is a prime number. Otherwise, 137 is a composite number.
To explain better, if 137 is only divisible by 1 and 137, then it is a prime number, and if 137 is divisible by more than 137 and 1, then it is a composite number.
The factors of 137 are as follows:
1, 137
Therefore, since 137 is divisible by only one and itself, the answer to the
question "Is 137 prime or composite?" is highlighted in blue below.
prime
Is 138 prime or composite?
OK. Now you know that 137 is a prime 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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