To determine if 1887 is a prime number or a composite number, we simply look at the factors for 1887.
If the factors of 1887 are only 1887 and 1, then we know that 1887 is a prime number. Otherwise, 1887 is a composite number.
To explain better, if 1887 is only divisible by 1 and 1887, then it is a prime number, and if 1887 is divisible by more than 1887 and 1, then it is a composite number.
The factors of 1887 are as follows:
1, 3, 17, 37, 51, 111, 629, 1887
Therefore, since 1887 is divisible by more than one and itself, the answer to the
question "Is 1887 prime or composite?" is highlighted in blue below.
composite
Is 1888 prime or composite?
OK. Now you know that 1887 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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