To determine if 675 is a prime number or a composite number, we simply look at the factors for 675.
If the factors of 675 are only 675 and 1, then we know that 675 is a prime number. Otherwise, 675 is a composite number.
To explain better, if 675 is only divisible by 1 and 675, then it is a prime number, and if 675 is divisible by more than 675 and 1, then it is a composite number.
The factors of 675 are as follows:
1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675
Therefore, since 675 is divisible by more than one and itself, the answer to the
question "Is 675 prime or composite?" is highlighted in blue below.
composite
Is 676 prime or composite?
OK. Now you know that 675 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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