To determine if 1915 is a prime number or a composite number, we simply look at the factors for 1915.
If the factors of 1915 are only 1915 and 1, then we know that 1915 is a prime number. Otherwise, 1915 is a composite number.
To explain better, if 1915 is only divisible by 1 and 1915, then it is a prime number, and if 1915 is divisible by more than 1915 and 1, then it is a composite number.
The factors of 1915 are as follows:
1, 5, 383, 1915
Therefore, since 1915 is divisible by more than one and itself, the answer to the
question "Is 1915 prime or composite?" is highlighted in blue below.
composite
Is 1916 prime or composite?
OK. Now you know that 1915 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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