To determine if 2123 is a prime number or a composite number, we simply look at the factors for 2123.
If the factors of 2123 are only 2123 and 1, then we know that 2123 is a prime number. Otherwise, 2123 is a composite number.
To explain better, if 2123 is only divisible by 1 and 2123, then it is a prime number, and if 2123 is divisible by more than 2123 and 1, then it is a composite number.
The factors of 2123 are as follows:
1, 11, 193, 2123
Therefore, since 2123 is divisible by more than one and itself, the answer to the
question "Is 2123 prime or composite?" is highlighted in blue below.
composite
Is 2124 prime or composite?
OK. Now you know that 2123 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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