To determine if 3965 is a prime number or a composite number, we simply look at the factors for 3965.
If the factors of 3965 are only 3965 and 1, then we know that 3965 is a prime number. Otherwise, 3965 is a composite number.
To explain better, if 3965 is only divisible by 1 and 3965, then it is a prime number, and if 3965 is divisible by more than 3965 and 1, then it is a composite number.
The factors of 3965 are as follows:
1, 5, 13, 61, 65, 305, 793, 3965
Therefore, since 3965 is divisible by more than one and itself, the answer to the
question "Is 3965 prime or composite?" is highlighted in blue below.
composite
Is 3966 prime or composite?
OK. Now you know that 3965 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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