To determine if 918 is a prime number or a composite number, we simply look at the factors for 918.
If the factors of 918 are only 918 and 1, then we know that 918 is a prime number. Otherwise, 918 is a composite number.
To explain better, if 918 is only divisible by 1 and 918, then it is a prime number, and if 918 is divisible by more than 918 and 1, then it is a composite number.
The factors of 918 are as follows:
1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918
Therefore, since 918 is divisible by more than one and itself, the answer to the
question "Is 918 prime or composite?" is highlighted in blue below.
composite
Is 919 prime or composite?
OK. Now you know that 918 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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