To determine if 9120 is a prime number or a composite number, we simply look at the factors for 9120.
If the factors of 9120 are only 9120 and 1, then we know that 9120 is a prime number. Otherwise, 9120 is a composite number.
To explain better, if 9120 is only divisible by 1 and 9120, then it is a prime number, and if 9120 is divisible by more than 9120 and 1, then it is a composite number.
The factors of 9120 are as follows:
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 76, 80, 95, 96, 114, 120, 152, 160, 190, 228, 240, 285, 304, 380, 456, 480, 570, 608, 760, 912, 1140, 1520, 1824, 2280, 3040, 4560, 9120
Therefore, since 9120 is divisible by more than one and itself, the answer to the
question "Is 9120 prime or composite?" is highlighted in blue below.
composite
Is 9121 prime or composite?
OK. Now you know that 9120 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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