To determine if 1870 is a prime number or a composite number, we simply look at the factors for 1870.
If the factors of 1870 are only 1870 and 1, then we know that 1870 is a prime number. Otherwise, 1870 is a composite number.
To explain better, if 1870 is only divisible by 1 and 1870, then it is a prime number, and if 1870 is divisible by more than 1870 and 1, then it is a composite number.
The factors of 1870 are as follows:
1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870
Therefore, since 1870 is divisible by more than one and itself, the answer to the
question "Is 1870 prime or composite?" is highlighted in blue below.
composite
Is 1871 prime or composite?
OK. Now you know that 1870 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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