To determine if 1983 is a prime number or a composite number, we simply look at the factors for 1983.
If the factors of 1983 are only 1983 and 1, then we know that 1983 is a prime number. Otherwise, 1983 is a composite number.
To explain better, if 1983 is only divisible by 1 and 1983, then it is a prime number, and if 1983 is divisible by more than 1983 and 1, then it is a composite number.
The factors of 1983 are as follows:
1, 3, 661, 1983
Therefore, since 1983 is divisible by more than one and itself, the answer to the
question "Is 1983 prime or composite?" is highlighted in blue below.
composite
Is 1984 prime or composite?
OK. Now you know that 1983 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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