To determine if 6820 is a prime number or a composite number, we simply look at the factors for 6820.
If the factors of 6820 are only 6820 and 1, then we know that 6820 is a prime number. Otherwise, 6820 is a composite number.
To explain better, if 6820 is only divisible by 1 and 6820, then it is a prime number, and if 6820 is divisible by more than 6820 and 1, then it is a composite number.
The factors of 6820 are as follows:
1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820
Therefore, since 6820 is divisible by more than one and itself, the answer to the
question "Is 6820 prime or composite?" is highlighted in blue below.
composite
Is 6821 prime or composite?
OK. Now you know that 6820 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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