To determine if 1779 is a prime number or a composite number, we simply look at the factors for 1779.
If the factors of 1779 are only 1779 and 1, then we know that 1779 is a prime number. Otherwise, 1779 is a composite number.
To explain better, if 1779 is only divisible by 1 and 1779, then it is a prime number, and if 1779 is divisible by more than 1779 and 1, then it is a composite number.
The factors of 1779 are as follows:
1, 3, 593, 1779
Therefore, since 1779 is divisible by more than one and itself, the answer to the
question "Is 1779 prime or composite?" is highlighted in blue below.
composite
Is 1780 prime or composite?
OK. Now you know that 1779 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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