To determine if 1908 is a prime number or a composite number, we simply look at the factors for 1908.
If the factors of 1908 are only 1908 and 1, then we know that 1908 is a prime number. Otherwise, 1908 is a composite number.
To explain better, if 1908 is only divisible by 1 and 1908, then it is a prime number, and if 1908 is divisible by more than 1908 and 1, then it is a composite number.
The factors of 1908 are as follows:
1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 318, 477, 636, 954, 1908
Therefore, since 1908 is divisible by more than one and itself, the answer to the
question "Is 1908 prime or composite?" is highlighted in blue below.
composite
Is 1909 prime or composite?
OK. Now you know that 1908 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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