To determine if 2109 is a prime number or a composite number, we simply look at the factors for 2109.
If the factors of 2109 are only 2109 and 1, then we know that 2109 is a prime number. Otherwise, 2109 is a composite number.
To explain better, if 2109 is only divisible by 1 and 2109, then it is a prime number, and if 2109 is divisible by more than 2109 and 1, then it is a composite number.
The factors of 2109 are as follows:
1, 3, 19, 37, 57, 111, 703, 2109
Therefore, since 2109 is divisible by more than one and itself, the answer to the
question "Is 2109 prime or composite?" is highlighted in blue below.
composite
Is 2110 prime or composite?
OK. Now you know that 2109 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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