To determine if 3128 is a prime number or a composite number, we simply look at the factors for 3128.
If the factors of 3128 are only 3128 and 1, then we know that 3128 is a prime number. Otherwise, 3128 is a composite number.
To explain better, if 3128 is only divisible by 1 and 3128, then it is a prime number, and if 3128 is divisible by more than 3128 and 1, then it is a composite number.
The factors of 3128 are as follows:
1, 2, 4, 8, 17, 23, 34, 46, 68, 92, 136, 184, 391, 782, 1564, 3128
Therefore, since 3128 is divisible by more than one and itself, the answer to the
question "Is 3128 prime or composite?" is highlighted in blue below.
composite
Is 3129 prime or composite?
OK. Now you know that 3128 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.
|
|
