To determine if 2154 is a prime number or a composite number, we simply look at the factors for 2154.
If the factors of 2154 are only 2154 and 1, then we know that 2154 is a prime number. Otherwise, 2154 is a composite number.
To explain better, if 2154 is only divisible by 1 and 2154, then it is a prime number, and if 2154 is divisible by more than 2154 and 1, then it is a composite number.
The factors of 2154 are as follows:
1, 2, 3, 6, 359, 718, 1077, 2154
Therefore, since 2154 is divisible by more than one and itself, the answer to the
question "Is 2154 prime or composite?" is highlighted in blue below.
composite
Is 2155 prime or composite?
OK. Now you know that 2154 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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