To determine if 1839 is a prime number or a composite number, we simply look at the factors for 1839.
If the factors of 1839 are only 1839 and 1, then we know that 1839 is a prime number. Otherwise, 1839 is a composite number.
To explain better, if 1839 is only divisible by 1 and 1839, then it is a prime number, and if 1839 is divisible by more than 1839 and 1, then it is a composite number.
The factors of 1839 are as follows:
1, 3, 613, 1839
Therefore, since 1839 is divisible by more than one and itself, the answer to the
question "Is 1839 prime or composite?" is highlighted in blue below.
composite
Is 1840 prime or composite?
OK. Now you know that 1839 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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