To determine if 980 is a prime number or a composite number, we simply look at the factors for 980.
If the factors of 980 are only 980 and 1, then we know that 980 is a prime number. Otherwise, 980 is a composite number.
To explain better, if 980 is only divisible by 1 and 980, then it is a prime number, and if 980 is divisible by more than 980 and 1, then it is a composite number.
The factors of 980 are as follows:
1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980
Therefore, since 980 is divisible by more than one and itself, the answer to the
question "Is 980 prime or composite?" is highlighted in blue below.
composite
Is 981 prime or composite?
OK. Now you know that 980 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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