To determine if 2159 is a prime number or a composite number, we simply look at the factors for 2159.
If the factors of 2159 are only 2159 and 1, then we know that 2159 is a prime number. Otherwise, 2159 is a composite number.
To explain better, if 2159 is only divisible by 1 and 2159, then it is a prime number, and if 2159 is divisible by more than 2159 and 1, then it is a composite number.
The factors of 2159 are as follows:
1, 17, 127, 2159
Therefore, since 2159 is divisible by more than one and itself, the answer to the
question "Is 2159 prime or composite?" is highlighted in blue below.
composite
Is 2160 prime or composite?
OK. Now you know that 2159 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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