To determine if 1291 is a prime number or a composite number, we simply look at the factors for 1291.
If the factors of 1291 are only 1291 and 1, then we know that 1291 is a prime number. Otherwise, 1291 is a composite number.
To explain better, if 1291 is only divisible by 1 and 1291, then it is a prime number, and if 1291 is divisible by more than 1291 and 1, then it is a composite number.
The factors of 1291 are as follows:
1, 1291
Therefore, since 1291 is divisible by only one and itself, the answer to the
question "Is 1291 prime or composite?" is highlighted in blue below.
prime
Is 1292 prime or composite?
OK. Now you know that 1291 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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