To determine if 7578 is a prime number or a composite number, we simply look at the factors for 7578.
If the factors of 7578 are only 7578 and 1, then we know that 7578 is a prime number. Otherwise, 7578 is a composite number.
To explain better, if 7578 is only divisible by 1 and 7578, then it is a prime number, and if 7578 is divisible by more than 7578 and 1, then it is a composite number.
The factors of 7578 are as follows:
1, 2, 3, 6, 9, 18, 421, 842, 1263, 2526, 3789, 7578
Therefore, since 7578 is divisible by more than one and itself, the answer to the
question "Is 7578 prime or composite?" is highlighted in blue below.
composite
Is 7579 prime or composite?
OK. Now you know that 7578 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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