To determine if 480 is a prime number or a composite number, we simply look at the factors for 480.
If the factors of 480 are only 480 and 1, then we know that 480 is a prime number. Otherwise, 480 is a composite number.
To explain better, if 480 is only divisible by 1 and 480, then it is a prime number, and if 480 is divisible by more than 480 and 1, then it is a composite number.
The factors of 480 are as follows:
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480
Therefore, since 480 is divisible by more than one and itself, the answer to the
question "Is 480 prime or composite?" is highlighted in blue below.
composite
Is 481 prime or composite?
OK. Now you know that 480 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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