To determine if 3521 is a prime number or a composite number, we simply look at the factors for 3521.
If the factors of 3521 are only 3521 and 1, then we know that 3521 is a prime number. Otherwise, 3521 is a composite number.
To explain better, if 3521 is only divisible by 1 and 3521, then it is a prime number, and if 3521 is divisible by more than 3521 and 1, then it is a composite number.
The factors of 3521 are as follows:
1, 7, 503, 3521
Therefore, since 3521 is divisible by more than one and itself, the answer to the
question "Is 3521 prime or composite?" is highlighted in blue below.
composite
Is 3522 prime or composite?
OK. Now you know that 3521 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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