To determine if 1090 is a prime number or a composite number, we simply look at the factors for 1090.
If the factors of 1090 are only 1090 and 1, then we know that 1090 is a prime number. Otherwise, 1090 is a composite number.
To explain better, if 1090 is only divisible by 1 and 1090, then it is a prime number, and if 1090 is divisible by more than 1090 and 1, then it is a composite number.
The factors of 1090 are as follows:
1, 2, 5, 10, 109, 218, 545, 1090
Therefore, since 1090 is divisible by more than one and itself, the answer to the
question "Is 1090 prime or composite?" is highlighted in blue below.
composite
Is 1091 prime or composite?
OK. Now you know that 1090 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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