To determine if 3090 is a prime number or a composite number, we simply look at the factors for 3090.
If the factors of 3090 are only 3090 and 1, then we know that 3090 is a prime number. Otherwise, 3090 is a composite number.
To explain better, if 3090 is only divisible by 1 and 3090, then it is a prime number, and if 3090 is divisible by more than 3090 and 1, then it is a composite number.
The factors of 3090 are as follows:
1, 2, 3, 5, 6, 10, 15, 30, 103, 206, 309, 515, 618, 1030, 1545, 3090
Therefore, since 3090 is divisible by more than one and itself, the answer to the
question "Is 3090 prime or composite?" is highlighted in blue below.
composite
Is 3091 prime or composite?
OK. Now you know that 3090 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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