To determine if 1381 is a prime number or a composite number, we simply look at the factors for 1381.
If the factors of 1381 are only 1381 and 1, then we know that 1381 is a prime number. Otherwise, 1381 is a composite number.
To explain better, if 1381 is only divisible by 1 and 1381, then it is a prime number, and if 1381 is divisible by more than 1381 and 1, then it is a composite number.
The factors of 1381 are as follows:
1, 1381
Therefore, since 1381 is divisible by only one and itself, the answer to the
question "Is 1381 prime or composite?" is highlighted in blue below.
prime
Is 1382 prime or composite?
OK. Now you know that 1381 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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