To determine if 5120 is a prime number or a composite number, we simply look at the factors for 5120.
If the factors of 5120 are only 5120 and 1, then we know that 5120 is a prime number. Otherwise, 5120 is a composite number.
To explain better, if 5120 is only divisible by 1 and 5120, then it is a prime number, and if 5120 is divisible by more than 5120 and 1, then it is a composite number.
The factors of 5120 are as follows:
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120
Therefore, since 5120 is divisible by more than one and itself, the answer to the
question "Is 5120 prime or composite?" is highlighted in blue below.
composite
Is 5121 prime or composite?
OK. Now you know that 5120 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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