To determine if 2779 is a prime number or a composite number, we simply look at the factors for 2779.
If the factors of 2779 are only 2779 and 1, then we know that 2779 is a prime number. Otherwise, 2779 is a composite number.
To explain better, if 2779 is only divisible by 1 and 2779, then it is a prime number, and if 2779 is divisible by more than 2779 and 1, then it is a composite number.
The factors of 2779 are as follows:
1, 7, 397, 2779
Therefore, since 2779 is divisible by more than one and itself, the answer to the
question "Is 2779 prime or composite?" is highlighted in blue below.
composite
Is 2780 prime or composite?
OK. Now you know that 2779 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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