To determine if 8090 is a prime number or a composite number, we simply look at the factors for 8090.
If the factors of 8090 are only 8090 and 1, then we know that 8090 is a prime number. Otherwise, 8090 is a composite number.
To explain better, if 8090 is only divisible by 1 and 8090, then it is a prime number, and if 8090 is divisible by more than 8090 and 1, then it is a composite number.
The factors of 8090 are as follows:
1, 2, 5, 10, 809, 1618, 4045, 8090
Therefore, since 8090 is divisible by more than one and itself, the answer to the
question "Is 8090 prime or composite?" is highlighted in blue below.
composite
Is 8091 prime or composite?
OK. Now you know that 8090 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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