To determine if 978 is a prime number or a composite number, we simply look at the factors for 978.
If the factors of 978 are only 978 and 1, then we know that 978 is a prime number. Otherwise, 978 is a composite number.
To explain better, if 978 is only divisible by 1 and 978, then it is a prime number, and if 978 is divisible by more than 978 and 1, then it is a composite number.
The factors of 978 are as follows:
1, 2, 3, 6, 163, 326, 489, 978
Therefore, since 978 is divisible by more than one and itself, the answer to the
question "Is 978 prime or composite?" is highlighted in blue below.
composite
Is 979 prime or composite?
OK. Now you know that 978 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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