To determine if 1125 is a prime number or a composite number, we simply look at the factors for 1125.
If the factors of 1125 are only 1125 and 1, then we know that 1125 is a prime number. Otherwise, 1125 is a composite number.
To explain better, if 1125 is only divisible by 1 and 1125, then it is a prime number, and if 1125 is divisible by more than 1125 and 1, then it is a composite number.
The factors of 1125 are as follows:
1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 1125
Therefore, since 1125 is divisible by more than one and itself, the answer to the
question "Is 1125 prime or composite?" is highlighted in blue below.
composite
Is 1126 prime or composite?
OK. Now you know that 1125 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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