To determine if 4120 is a prime number or a composite number, we simply look at the factors for 4120.
If the factors of 4120 are only 4120 and 1, then we know that 4120 is a prime number. Otherwise, 4120 is a composite number.
To explain better, if 4120 is only divisible by 1 and 4120, then it is a prime number, and if 4120 is divisible by more than 4120 and 1, then it is a composite number.
The factors of 4120 are as follows:
1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120
Therefore, since 4120 is divisible by more than one and itself, the answer to the
question "Is 4120 prime or composite?" is highlighted in blue below.
composite
Is 4121 prime or composite?
OK. Now you know that 4120 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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