To determine if 1142 is a prime number or a composite number, we simply look at the factors for 1142.
If the factors of 1142 are only 1142 and 1, then we know that 1142 is a prime number. Otherwise, 1142 is a composite number.
To explain better, if 1142 is only divisible by 1 and 1142, then it is a prime number, and if 1142 is divisible by more than 1142 and 1, then it is a composite number.
The factors of 1142 are as follows:
1, 2, 571, 1142
Therefore, since 1142 is divisible by more than one and itself, the answer to the
question "Is 1142 prime or composite?" is highlighted in blue below.
composite
Is 1143 prime or composite?
OK. Now you know that 1142 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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