To determine if 149 is a prime number or a composite number, we simply look at the factors for 149.
If the factors of 149 are only 149 and 1, then we know that 149 is a prime number. Otherwise, 149 is a composite number.
To explain better, if 149 is only divisible by 1 and 149, then it is a prime number, and if 149 is divisible by more than 149 and 1, then it is a composite number.
The factors of 149 are as follows:
1, 149
Therefore, since 149 is divisible by only one and itself, the answer to the
question "Is 149 prime or composite?" is highlighted in blue below.
prime
Is 150 prime or composite?
OK. Now you know that 149 is a prime 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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