To determine if 2490 is a prime number or a composite number, we simply look at the factors for 2490.
If the factors of 2490 are only 2490 and 1, then we know that 2490 is a prime number. Otherwise, 2490 is a composite number.
To explain better, if 2490 is only divisible by 1 and 2490, then it is a prime number, and if 2490 is divisible by more than 2490 and 1, then it is a composite number.
The factors of 2490 are as follows:
1, 2, 3, 5, 6, 10, 15, 30, 83, 166, 249, 415, 498, 830, 1245, 2490
Therefore, since 2490 is divisible by more than one and itself, the answer to the
question "Is 2490 prime or composite?" is highlighted in blue below.
composite
Is 2491 prime or composite?
OK. Now you know that 2490 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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