To determine if 7521 is a prime number or a composite number, we simply look at the factors for 7521.
If the factors of 7521 are only 7521 and 1, then we know that 7521 is a prime number. Otherwise, 7521 is a composite number.
To explain better, if 7521 is only divisible by 1 and 7521, then it is a prime number, and if 7521 is divisible by more than 7521 and 1, then it is a composite number.
The factors of 7521 are as follows:
1, 3, 23, 69, 109, 327, 2507, 7521
Therefore, since 7521 is divisible by more than one and itself, the answer to the
question "Is 7521 prime or composite?" is highlighted in blue below.
composite
Is 7522 prime or composite?
OK. Now you know that 7521 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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