To determine if 1551 is a prime number or a composite number, we simply look at the factors for 1551.
If the factors of 1551 are only 1551 and 1, then we know that 1551 is a prime number. Otherwise, 1551 is a composite number.
To explain better, if 1551 is only divisible by 1 and 1551, then it is a prime number, and if 1551 is divisible by more than 1551 and 1, then it is a composite number.
The factors of 1551 are as follows:
1, 3, 11, 33, 47, 141, 517, 1551
Therefore, since 1551 is divisible by more than one and itself, the answer to the
question "Is 1551 prime or composite?" is highlighted in blue below.
composite
Is 1552 prime or composite?
OK. Now you know that 1551 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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