To determine if 8128 is a prime number or a composite number, we simply look at the factors for 8128.
If the factors of 8128 are only 8128 and 1, then we know that 8128 is a prime number. Otherwise, 8128 is a composite number.
To explain better, if 8128 is only divisible by 1 and 8128, then it is a prime number, and if 8128 is divisible by more than 8128 and 1, then it is a composite number.
The factors of 8128 are as follows:
1, 2, 4, 8, 16, 32, 64, 127, 254, 508, 1016, 2032, 4064, 8128
Therefore, since 8128 is divisible by more than one and itself, the answer to the
question "Is 8128 prime or composite?" is highlighted in blue below.
composite
Is 8129 prime or composite?
OK. Now you know that 8128 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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