To determine if 1930 is a prime number or a composite number, we simply look at the factors for 1930.
If the factors of 1930 are only 1930 and 1, then we know that 1930 is a prime number. Otherwise, 1930 is a composite number.
To explain better, if 1930 is only divisible by 1 and 1930, then it is a prime number, and if 1930 is divisible by more than 1930 and 1, then it is a composite number.
The factors of 1930 are as follows:
1, 2, 5, 10, 193, 386, 965, 1930
Therefore, since 1930 is divisible by more than one and itself, the answer to the
question "Is 1930 prime or composite?" is highlighted in blue below.
composite
Is 1931 prime or composite?
OK. Now you know that 1930 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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