To determine if 1371 is a prime number or a composite number, we simply look at the factors for 1371.
If the factors of 1371 are only 1371 and 1, then we know that 1371 is a prime number. Otherwise, 1371 is a composite number.
To explain better, if 1371 is only divisible by 1 and 1371, then it is a prime number, and if 1371 is divisible by more than 1371 and 1, then it is a composite number.
The factors of 1371 are as follows:
1, 3, 457, 1371
Therefore, since 1371 is divisible by more than one and itself, the answer to the
question "Is 1371 prime or composite?" is highlighted in blue below.
composite
Is 1372 prime or composite?
OK. Now you know that 1371 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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