To determine if 1859 is a prime number or a composite number, we simply look at the factors for 1859.
If the factors of 1859 are only 1859 and 1, then we know that 1859 is a prime number. Otherwise, 1859 is a composite number.
To explain better, if 1859 is only divisible by 1 and 1859, then it is a prime number, and if 1859 is divisible by more than 1859 and 1, then it is a composite number.
The factors of 1859 are as follows:
1, 11, 13, 143, 169, 1859
Therefore, since 1859 is divisible by more than one and itself, the answer to the
question "Is 1859 prime or composite?" is highlighted in blue below.
composite
Is 1860 prime or composite?
OK. Now you know that 1859 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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