To determine if 800 is a prime number or a composite number, we simply look at the factors for 800.
If the factors of 800 are only 800 and 1, then we know that 800 is a prime number. Otherwise, 800 is a composite number.
To explain better, if 800 is only divisible by 1 and 800, then it is a prime number, and if 800 is divisible by more than 800 and 1, then it is a composite number.
The factors of 800 are as follows:
1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800
Therefore, since 800 is divisible by more than one and itself, the answer to the
question "Is 800 prime or composite?" is highlighted in blue below.
composite
Is 801 prime or composite?
OK. Now you know that 800 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.
|
|
