To determine if 2646 is a prime number or a composite number, we simply look at the factors for 2646.
If the factors of 2646 are only 2646 and 1, then we know that 2646 is a prime number. Otherwise, 2646 is a composite number.
To explain better, if 2646 is only divisible by 1 and 2646, then it is a prime number, and if 2646 is divisible by more than 2646 and 1, then it is a composite number.
The factors of 2646 are as follows:
1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 378, 441, 882, 1323, 2646
Therefore, since 2646 is divisible by more than one and itself, the answer to the
question "Is 2646 prime or composite?" is highlighted in blue below.
composite
Is 2647 prime or composite?
OK. Now you know that 2646 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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