To determine if 921 is a prime number or a composite number, we simply look at the factors for 921.
If the factors of 921 are only 921 and 1, then we know that 921 is a prime number. Otherwise, 921 is a composite number.
To explain better, if 921 is only divisible by 1 and 921, then it is a prime number, and if 921 is divisible by more than 921 and 1, then it is a composite number.
The factors of 921 are as follows:
1, 3, 307, 921
Therefore, since 921 is divisible by more than one and itself, the answer to the
question "Is 921 prime or composite?" is highlighted in blue below.
composite
Is 922 prime or composite?
OK. Now you know that 921 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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