To determine if 3940 is a prime number or a composite number, we simply look at the factors for 3940.
If the factors of 3940 are only 3940 and 1, then we know that 3940 is a prime number. Otherwise, 3940 is a composite number.
To explain better, if 3940 is only divisible by 1 and 3940, then it is a prime number, and if 3940 is divisible by more than 3940 and 1, then it is a composite number.
The factors of 3940 are as follows:
1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940
Therefore, since 3940 is divisible by more than one and itself, the answer to the
question "Is 3940 prime or composite?" is highlighted in blue below.
composite
Is 3941 prime or composite?
OK. Now you know that 3940 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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