To determine if 1655 is a prime number or a composite number, we simply look at the factors for 1655.
If the factors of 1655 are only 1655 and 1, then we know that 1655 is a prime number. Otherwise, 1655 is a composite number.
To explain better, if 1655 is only divisible by 1 and 1655, then it is a prime number, and if 1655 is divisible by more than 1655 and 1, then it is a composite number.
The factors of 1655 are as follows:
1, 5, 331, 1655
Therefore, since 1655 is divisible by more than one and itself, the answer to the
question "Is 1655 prime or composite?" is highlighted in blue below.
composite
Is 1656 prime or composite?
OK. Now you know that 1655 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.
|
|
