To determine if 1982 is a prime number or a composite number, we simply look at the factors for 1982.
If the factors of 1982 are only 1982 and 1, then we know that 1982 is a prime number. Otherwise, 1982 is a composite number.
To explain better, if 1982 is only divisible by 1 and 1982, then it is a prime number, and if 1982 is divisible by more than 1982 and 1, then it is a composite number.
The factors of 1982 are as follows:
1, 2, 991, 1982
Therefore, since 1982 is divisible by more than one and itself, the answer to the
question "Is 1982 prime or composite?" is highlighted in blue below.
composite
Is 1983 prime or composite?
OK. Now you know that 1982 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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