To determine if 2730 is a prime number or a composite number, we simply look at the factors for 2730.
If the factors of 2730 are only 2730 and 1, then we know that 2730 is a prime number. Otherwise, 2730 is a composite number.
To explain better, if 2730 is only divisible by 1 and 2730, then it is a prime number, and if 2730 is divisible by more than 2730 and 1, then it is a composite number.
The factors of 2730 are as follows:
1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 182, 195, 210, 273, 390, 455, 546, 910, 1365, 2730
Therefore, since 2730 is divisible by more than one and itself, the answer to the
question "Is 2730 prime or composite?" is highlighted in blue below.
composite
Is 2731 prime or composite?
OK. Now you know that 2730 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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