To determine if 553 is a prime number or a composite number, we simply look at the factors for 553.
If the factors of 553 are only 553 and 1, then we know that 553 is a prime number. Otherwise, 553 is a composite number.
To explain better, if 553 is only divisible by 1 and 553, then it is a prime number, and if 553 is divisible by more than 553 and 1, then it is a composite number.
The factors of 553 are as follows:
1, 7, 79, 553
Therefore, since 553 is divisible by more than one and itself, the answer to the
question "Is 553 prime or composite?" is highlighted in blue below.
composite
Is 554 prime or composite?
OK. Now you know that 553 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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