To determine if 141 is a prime number or a composite number, we simply look at the factors for 141.
If the factors of 141 are only 141 and 1, then we know that 141 is a prime number. Otherwise, 141 is a composite number.
To explain better, if 141 is only divisible by 1 and 141, then it is a prime number, and if 141 is divisible by more than 141 and 1, then it is a composite number.
The factors of 141 are as follows:
1, 3, 47, 141
Therefore, since 141 is divisible by more than one and itself, the answer to the
question "Is 141 prime or composite?" is highlighted in blue below.
composite
Is 142 prime or composite?
OK. Now you know that 141 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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