To determine if 1866 is a prime number or a composite number, we simply look at the factors for 1866.
If the factors of 1866 are only 1866 and 1, then we know that 1866 is a prime number. Otherwise, 1866 is a composite number.
To explain better, if 1866 is only divisible by 1 and 1866, then it is a prime number, and if 1866 is divisible by more than 1866 and 1, then it is a composite number.
The factors of 1866 are as follows:
1, 2, 3, 6, 311, 622, 933, 1866
Therefore, since 1866 is divisible by more than one and itself, the answer to the
question "Is 1866 prime or composite?" is highlighted in blue below.
composite
Is 1867 prime or composite?
OK. Now you know that 1866 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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