To determine if 331 is a prime number or a composite number, we simply look at the factors for 331.
If the factors of 331 are only 331 and 1, then we know that 331 is a prime number. Otherwise, 331 is a composite number.
To explain better, if 331 is only divisible by 1 and 331, then it is a prime number, and if 331 is divisible by more than 331 and 1, then it is a composite number.
The factors of 331 are as follows:
1, 331
Therefore, since 331 is divisible by only one and itself, the answer to the
question "Is 331 prime or composite?" is highlighted in blue below.
prime
Is 332 prime or composite?
OK. Now you know that 331 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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