To determine if 1556 is a prime number or a composite number, we simply look at the factors for 1556.
If the factors of 1556 are only 1556 and 1, then we know that 1556 is a prime number. Otherwise, 1556 is a composite number.
To explain better, if 1556 is only divisible by 1 and 1556, then it is a prime number, and if 1556 is divisible by more than 1556 and 1, then it is a composite number.
The factors of 1556 are as follows:
1, 2, 4, 389, 778, 1556
Therefore, since 1556 is divisible by more than one and itself, the answer to the
question "Is 1556 prime or composite?" is highlighted in blue below.
composite
Is 1557 prime or composite?
OK. Now you know that 1556 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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