To determine if 2415 is a prime number or a composite number, we simply look at the factors for 2415.
If the factors of 2415 are only 2415 and 1, then we know that 2415 is a prime number. Otherwise, 2415 is a composite number.
To explain better, if 2415 is only divisible by 1 and 2415, then it is a prime number, and if 2415 is divisible by more than 2415 and 1, then it is a composite number.
The factors of 2415 are as follows:
1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415
Therefore, since 2415 is divisible by more than one and itself, the answer to the
question "Is 2415 prime or composite?" is highlighted in blue below.
composite
Is 2416 prime or composite?
OK. Now you know that 2415 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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