To determine if 7905 is a prime number or a composite number, we simply look at the factors for 7905.
If the factors of 7905 are only 7905 and 1, then we know that 7905 is a prime number. Otherwise, 7905 is a composite number.
To explain better, if 7905 is only divisible by 1 and 7905, then it is a prime number, and if 7905 is divisible by more than 7905 and 1, then it is a composite number.
The factors of 7905 are as follows:
1, 3, 5, 15, 17, 31, 51, 85, 93, 155, 255, 465, 527, 1581, 2635, 7905
Therefore, since 7905 is divisible by more than one and itself, the answer to the
question "Is 7905 prime or composite?" is highlighted in blue below.
composite
Is 7906 prime or composite?
OK. Now you know that 7905 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.
|
|
