To determine if 1231 is a prime number or a composite number, we simply look at the factors for 1231.
If the factors of 1231 are only 1231 and 1, then we know that 1231 is a prime number. Otherwise, 1231 is a composite number.
To explain better, if 1231 is only divisible by 1 and 1231, then it is a prime number, and if 1231 is divisible by more than 1231 and 1, then it is a composite number.
The factors of 1231 are as follows:
1, 1231
Therefore, since 1231 is divisible by only one and itself, the answer to the
question "Is 1231 prime or composite?" is highlighted in blue below.
prime
Is 1232 prime or composite?
OK. Now you know that 1231 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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