To determine if 1554 is a prime number or a composite number, we simply look at the factors for 1554.
If the factors of 1554 are only 1554 and 1, then we know that 1554 is a prime number. Otherwise, 1554 is a composite number.
To explain better, if 1554 is only divisible by 1 and 1554, then it is a prime number, and if 1554 is divisible by more than 1554 and 1, then it is a composite number.
The factors of 1554 are as follows:
1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554
Therefore, since 1554 is divisible by more than one and itself, the answer to the
question "Is 1554 prime or composite?" is highlighted in blue below.
composite
Is 1555 prime or composite?
OK. Now you know that 1554 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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