To determine if 7428 is a prime number or a composite number, we simply look at the factors for 7428.
If the factors of 7428 are only 7428 and 1, then we know that 7428 is a prime number. Otherwise, 7428 is a composite number.
To explain better, if 7428 is only divisible by 1 and 7428, then it is a prime number, and if 7428 is divisible by more than 7428 and 1, then it is a composite number.
The factors of 7428 are as follows:
1, 2, 3, 4, 6, 12, 619, 1238, 1857, 2476, 3714, 7428
Therefore, since 7428 is divisible by more than one and itself, the answer to the
question "Is 7428 prime or composite?" is highlighted in blue below.
composite
Is 7429 prime or composite?
OK. Now you know that 7428 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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