To determine if 631 is a prime number or a composite number, we simply look at the factors for 631.
If the factors of 631 are only 631 and 1, then we know that 631 is a prime number. Otherwise, 631 is a composite number.
To explain better, if 631 is only divisible by 1 and 631, then it is a prime number, and if 631 is divisible by more than 631 and 1, then it is a composite number.
The factors of 631 are as follows:
1, 631
Therefore, since 631 is divisible by only one and itself, the answer to the
question "Is 631 prime or composite?" is highlighted in blue below.
prime
Is 632 prime or composite?
OK. Now you know that 631 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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