To determine if 1813 is a prime number or a composite number, we simply look at the factors for 1813.
If the factors of 1813 are only 1813 and 1, then we know that 1813 is a prime number. Otherwise, 1813 is a composite number.
To explain better, if 1813 is only divisible by 1 and 1813, then it is a prime number, and if 1813 is divisible by more than 1813 and 1, then it is a composite number.
The factors of 1813 are as follows:
1, 7, 37, 49, 259, 1813
Therefore, since 1813 is divisible by more than one and itself, the answer to the
question "Is 1813 prime or composite?" is highlighted in blue below.
composite
Is 1814 prime or composite?
OK. Now you know that 1813 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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