To determine if 4905 is a prime number or a composite number, we simply look at the factors for 4905.
If the factors of 4905 are only 4905 and 1, then we know that 4905 is a prime number. Otherwise, 4905 is a composite number.
To explain better, if 4905 is only divisible by 1 and 4905, then it is a prime number, and if 4905 is divisible by more than 4905 and 1, then it is a composite number.
The factors of 4905 are as follows:
1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4905
Therefore, since 4905 is divisible by more than one and itself, the answer to the
question "Is 4905 prime or composite?" is highlighted in blue below.
composite
Is 4906 prime or composite?
OK. Now you know that 4905 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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