To determine if 7280 is a prime number or a composite number, we simply look at the factors for 7280.
If the factors of 7280 are only 7280 and 1, then we know that 7280 is a prime number. Otherwise, 7280 is a composite number.
To explain better, if 7280 is only divisible by 1 and 7280, then it is a prime number, and if 7280 is divisible by more than 7280 and 1, then it is a composite number.
The factors of 7280 are as follows:
1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280
Therefore, since 7280 is divisible by more than one and itself, the answer to the
question "Is 7280 prime or composite?" is highlighted in blue below.
composite
Is 7281 prime or composite?
OK. Now you know that 7280 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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