To determine if 8990 is a prime number or a composite number, we simply look at the factors for 8990.
If the factors of 8990 are only 8990 and 1, then we know that 8990 is a prime number. Otherwise, 8990 is a composite number.
To explain better, if 8990 is only divisible by 1 and 8990, then it is a prime number, and if 8990 is divisible by more than 8990 and 1, then it is a composite number.
The factors of 8990 are as follows:
1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 4495, 8990
Therefore, since 8990 is divisible by more than one and itself, the answer to the
question "Is 8990 prime or composite?" is highlighted in blue below.
composite
Is 8991 prime or composite?
OK. Now you know that 8990 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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