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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