To determine if 159 is a prime number or a composite number, we simply look at the factors for 159.
If the factors of 159 are only 159 and 1, then we know that 159 is a prime number. Otherwise, 159 is a composite number.
To explain better, if 159 is only divisible by 1 and 159, then it is a prime number, and if 159 is divisible by more than 159 and 1, then it is a composite number.
The factors of 159 are as follows:
1, 3, 53, 159
Therefore, since 159 is divisible by more than one and itself, the answer to the
question "Is 159 prime or composite?" is highlighted in blue below.
composite
Is 160 prime or composite?
OK. Now you know that 159 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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