To determine if 2355 is a prime number or a composite number, we simply look at the factors for 2355.
If the factors of 2355 are only 2355 and 1, then we know that 2355 is a prime number. Otherwise, 2355 is a composite number.
To explain better, if 2355 is only divisible by 1 and 2355, then it is a prime number, and if 2355 is divisible by more than 2355 and 1, then it is a composite number.
The factors of 2355 are as follows:
1, 3, 5, 15, 157, 471, 785, 2355
Therefore, since 2355 is divisible by more than one and itself, the answer to the
question "Is 2355 prime or composite?" is highlighted in blue below.
composite
Is 2356 prime or composite?
OK. Now you know that 2355 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.
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