To determine if 3131 is a prime number or a composite number, we simply look at the factors for 3131.
If the factors of 3131 are only 3131 and 1, then we know that 3131 is a prime number. Otherwise, 3131 is a composite number.
To explain better, if 3131 is only divisible by 1 and 3131, then it is a prime number, and if 3131 is divisible by more than 3131 and 1, then it is a composite number.
The factors of 3131 are as follows:
1, 31, 101, 3131
Therefore, since 3131 is divisible by more than one and itself, the answer to the
question "Is 3131 prime or composite?" is highlighted in blue below.
composite
Is 3132 prime or composite?
OK. Now you know that 3131 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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