To determine if 3909 is a prime number or a composite number, we simply look at the factors for 3909.
If the factors of 3909 are only 3909 and 1, then we know that 3909 is a prime number. Otherwise, 3909 is a composite number.
To explain better, if 3909 is only divisible by 1 and 3909, then it is a prime number, and if 3909 is divisible by more than 3909 and 1, then it is a composite number.
The factors of 3909 are as follows:
1, 3, 1303, 3909
Therefore, since 3909 is divisible by more than one and itself, the answer to the
question "Is 3909 prime or composite?" is highlighted in blue below.
composite
Is 3910 prime or composite?
OK. Now you know that 3909 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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