To determine if 723 is a prime number or a composite number, we simply look at the factors for 723.
If the factors of 723 are only 723 and 1, then we know that 723 is a prime number. Otherwise, 723 is a composite number.
To explain better, if 723 is only divisible by 1 and 723, then it is a prime number, and if 723 is divisible by more than 723 and 1, then it is a composite number.
The factors of 723 are as follows:
1, 3, 241, 723
Therefore, since 723 is divisible by more than one and itself, the answer to the
question "Is 723 prime or composite?" is highlighted in blue below.
composite
Is 724 prime or composite?
OK. Now you know that 723 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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