To determine if 1965 is a prime number or a composite number, we simply look at the factors for 1965.
If the factors of 1965 are only 1965 and 1, then we know that 1965 is a prime number. Otherwise, 1965 is a composite number.
To explain better, if 1965 is only divisible by 1 and 1965, then it is a prime number, and if 1965 is divisible by more than 1965 and 1, then it is a composite number.
The factors of 1965 are as follows:
1, 3, 5, 15, 131, 393, 655, 1965
Therefore, since 1965 is divisible by more than one and itself, the answer to the
question "Is 1965 prime or composite?" is highlighted in blue below.
composite
Is 1966 prime or composite?
OK. Now you know that 1965 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.
|
|
