To determine if 1974 is a prime number or a composite number, we simply look at the factors for 1974.
If the factors of 1974 are only 1974 and 1, then we know that 1974 is a prime number. Otherwise, 1974 is a composite number.
To explain better, if 1974 is only divisible by 1 and 1974, then it is a prime number, and if 1974 is divisible by more than 1974 and 1, then it is a composite number.
The factors of 1974 are as follows:
1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 658, 987, 1974
Therefore, since 1974 is divisible by more than one and itself, the answer to the
question "Is 1974 prime or composite?" is highlighted in blue below.
composite
Is 1975 prime or composite?
OK. Now you know that 1974 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.
|
|
