To determine if 903 is a prime number or a composite number, we simply look at the factors for 903.
If the factors of 903 are only 903 and 1, then we know that 903 is a prime number. Otherwise, 903 is a composite number.
To explain better, if 903 is only divisible by 1 and 903, then it is a prime number, and if 903 is divisible by more than 903 and 1, then it is a composite number.
The factors of 903 are as follows:
1, 3, 7, 21, 43, 129, 301, 903
Therefore, since 903 is divisible by more than one and itself, the answer to the
question "Is 903 prime or composite?" is highlighted in blue below.
composite
Is 904 prime or composite?
OK. Now you know that 903 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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