To determine if 7145 is a prime number or a composite number, we simply look at the factors for 7145.
If the factors of 7145 are only 7145 and 1, then we know that 7145 is a prime number. Otherwise, 7145 is a composite number.
To explain better, if 7145 is only divisible by 1 and 7145, then it is a prime number, and if 7145 is divisible by more than 7145 and 1, then it is a composite number.
The factors of 7145 are as follows:
1, 5, 1429, 7145
Therefore, since 7145 is divisible by more than one and itself, the answer to the
question "Is 7145 prime or composite?" is highlighted in blue below.
composite
Is 7146 prime or composite?
OK. Now you know that 7145 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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