To determine if 1386 is a prime number or a composite number, we simply look at the factors for 1386.
If the factors of 1386 are only 1386 and 1, then we know that 1386 is a prime number. Otherwise, 1386 is a composite number.
To explain better, if 1386 is only divisible by 1 and 1386, then it is a prime number, and if 1386 is divisible by more than 1386 and 1, then it is a composite number.
The factors of 1386 are as follows:
1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386
Therefore, since 1386 is divisible by more than one and itself, the answer to the
question "Is 1386 prime or composite?" is highlighted in blue below.
composite
Is 1387 prime or composite?
OK. Now you know that 1386 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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