To determine if 4991 is a prime number or a composite number, we simply look at the factors for 4991.
If the factors of 4991 are only 4991 and 1, then we know that 4991 is a prime number. Otherwise, 4991 is a composite number.
To explain better, if 4991 is only divisible by 1 and 4991, then it is a prime number, and if 4991 is divisible by more than 4991 and 1, then it is a composite number.
The factors of 4991 are as follows:
1, 7, 23, 31, 161, 217, 713, 4991
Therefore, since 4991 is divisible by more than one and itself, the answer to the
question "Is 4991 prime or composite?" is highlighted in blue below.
composite
Is 4992 prime or composite?
OK. Now you know that 4991 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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