To determine if 8220 is a prime number or a composite number, we simply look at the factors for 8220.
If the factors of 8220 are only 8220 and 1, then we know that 8220 is a prime number. Otherwise, 8220 is a composite number.
To explain better, if 8220 is only divisible by 1 and 8220, then it is a prime number, and if 8220 is divisible by more than 8220 and 1, then it is a composite number.
The factors of 8220 are as follows:
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 137, 274, 411, 548, 685, 822, 1370, 1644, 2055, 2740, 4110, 8220
Therefore, since 8220 is divisible by more than one and itself, the answer to the
question "Is 8220 prime or composite?" is highlighted in blue below.
composite
Is 8221 prime or composite?
OK. Now you know that 8220 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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