Is 31 a prime or composite number?

1 Answer
JJ
Mar 5, 2018

Prime

Explanation:

31 is a prime number because the only numbers (factors) that can be multiplied to make 31 is #1#, and #31#. If it happened to have more then two numbers however (like if it had 1, 31, 2, and 7) then it would be a composite number.

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