To determine if 3928 is a prime number or a composite number, we simply look at the factors for 3928.
If the factors of 3928 are only 3928 and 1, then we know that 3928 is a prime number. Otherwise, 3928 is a composite number.
To explain better, if 3928 is only divisible by 1 and 3928, then it is a prime number, and if 3928 is divisible by more than 3928 and 1, then it is a composite number.
The factors of 3928 are as follows:
1, 2, 4, 8, 491, 982, 1964, 3928
Therefore, since 3928 is divisible by more than one and itself, the answer to the
question "Is 3928 prime or composite?" is highlighted in blue below.
composite
Is 3929 prime or composite?
OK. Now you know that 3928 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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