To determine if 1891 is a prime number or a composite number, we simply look at the factors for 1891.
If the factors of 1891 are only 1891 and 1, then we know that 1891 is a prime number. Otherwise, 1891 is a composite number.
To explain better, if 1891 is only divisible by 1 and 1891, then it is a prime number, and if 1891 is divisible by more than 1891 and 1, then it is a composite number.
The factors of 1891 are as follows:
1, 31, 61, 1891
Therefore, since 1891 is divisible by more than one and itself, the answer to the
question "Is 1891 prime or composite?" is highlighted in blue below.
composite
Is 1892 prime or composite?
OK. Now you know that 1891 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.
|
|
