To determine if 320 is a prime number or a composite number, we simply look at the factors for 320.
If the factors of 320 are only 320 and 1, then we know that 320 is a prime number. Otherwise, 320 is a composite number.
To explain better, if 320 is only divisible by 1 and 320, then it is a prime number, and if 320 is divisible by more than 320 and 1, then it is a composite number.
The factors of 320 are as follows:
1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320
Therefore, since 320 is divisible by more than one and itself, the answer to the
question "Is 320 prime or composite?" is highlighted in blue below.
composite
Is 321 prime or composite?
OK. Now you know that 320 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.
|
|
