To determine if 2639 is a prime number or a composite number, we simply look at the factors for 2639.
If the factors of 2639 are only 2639 and 1, then we know that 2639 is a prime number. Otherwise, 2639 is a composite number.
To explain better, if 2639 is only divisible by 1 and 2639, then it is a prime number, and if 2639 is divisible by more than 2639 and 1, then it is a composite number.
The factors of 2639 are as follows:
1, 7, 13, 29, 91, 203, 377, 2639
Therefore, since 2639 is divisible by more than one and itself, the answer to the
question "Is 2639 prime or composite?" is highlighted in blue below.
composite
Is 2640 prime or composite?
OK. Now you know that 2639 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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