To determine if 6620 is a prime number or a composite number, we simply look at the factors for 6620.
If the factors of 6620 are only 6620 and 1, then we know that 6620 is a prime number. Otherwise, 6620 is a composite number.
To explain better, if 6620 is only divisible by 1 and 6620, then it is a prime number, and if 6620 is divisible by more than 6620 and 1, then it is a composite number.
The factors of 6620 are as follows:
1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3310, 6620
Therefore, since 6620 is divisible by more than one and itself, the answer to the
question "Is 6620 prime or composite?" is highlighted in blue below.
composite
Is 6621 prime or composite?
OK. Now you know that 6620 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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