To determine if 1889 is a prime number or a composite number, we simply look at the factors for 1889.
If the factors of 1889 are only 1889 and 1, then we know that 1889 is a prime number. Otherwise, 1889 is a composite number.
To explain better, if 1889 is only divisible by 1 and 1889, then it is a prime number, and if 1889 is divisible by more than 1889 and 1, then it is a composite number.
The factors of 1889 are as follows:
1, 1889
Therefore, since 1889 is divisible by only one and itself, the answer to the
question "Is 1889 prime or composite?" is highlighted in blue below.
prime
Is 1890 prime or composite?
OK. Now you know that 1889 is a prime 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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