To determine if 124 is a prime number or a composite number, we simply look at the factors for 124.
If the factors of 124 are only 124 and 1, then we know that 124 is a prime number. Otherwise, 124 is a composite number.
To explain better, if 124 is only divisible by 1 and 124, then it is a prime number, and if 124 is divisible by more than 124 and 1, then it is a composite number.
The factors of 124 are as follows:
1, 2, 4, 31, 62, 124
Therefore, since 124 is divisible by more than one and itself, the answer to the
question "Is 124 prime or composite?" is highlighted in blue below.
composite
Is 125 prime or composite?
OK. Now you know that 124 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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