To determine if 395 is a prime number or a composite number, we simply look at the factors for 395.
If the factors of 395 are only 395 and 1, then we know that 395 is a prime number. Otherwise, 395 is a composite number.
To explain better, if 395 is only divisible by 1 and 395, then it is a prime number, and if 395 is divisible by more than 395 and 1, then it is a composite number.
The factors of 395 are as follows:
1, 5, 79, 395
Therefore, since 395 is divisible by more than one and itself, the answer to the
question "Is 395 prime or composite?" is highlighted in blue below.
composite
Is 396 prime or composite?
OK. Now you know that 395 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.
|
|