To determine if 7921 is a prime number or a composite number, we simply look at the factors for 7921.
If the factors of 7921 are only 7921 and 1, then we know that 7921 is a prime number. Otherwise, 7921 is a composite number.
To explain better, if 7921 is only divisible by 1 and 7921, then it is a prime number, and if 7921 is divisible by more than 7921 and 1, then it is a composite number.
The factors of 7921 are as follows:
1, 89, 7921
Therefore, since 7921 is divisible by more than one and itself, the answer to the
question "Is 7921 prime or composite?" is highlighted in blue below.
composite
Is 7922 prime or composite?
OK. Now you know that 7921 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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