To determine if 1947 is a prime number or a composite number, we simply look at the factors for 1947.
If the factors of 1947 are only 1947 and 1, then we know that 1947 is a prime number. Otherwise, 1947 is a composite number.
To explain better, if 1947 is only divisible by 1 and 1947, then it is a prime number, and if 1947 is divisible by more than 1947 and 1, then it is a composite number.
The factors of 1947 are as follows:
1, 3, 11, 33, 59, 177, 649, 1947
Therefore, since 1947 is divisible by more than one and itself, the answer to the
question "Is 1947 prime or composite?" is highlighted in blue below.
composite
Is 1948 prime or composite?
OK. Now you know that 1947 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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