To determine if 4090 is a prime number or a composite number, we simply look at the factors for 4090.
If the factors of 4090 are only 4090 and 1, then we know that 4090 is a prime number. Otherwise, 4090 is a composite number.
To explain better, if 4090 is only divisible by 1 and 4090, then it is a prime number, and if 4090 is divisible by more than 4090 and 1, then it is a composite number.
The factors of 4090 are as follows:
1, 2, 5, 10, 409, 818, 2045, 4090
Therefore, since 4090 is divisible by more than one and itself, the answer to the
question "Is 4090 prime or composite?" is highlighted in blue below.
composite
Is 4091 prime or composite?
OK. Now you know that 4090 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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