To determine if 9820 is a prime number or a composite number, we simply look at the factors for 9820.
If the factors of 9820 are only 9820 and 1, then we know that 9820 is a prime number. Otherwise, 9820 is a composite number.
To explain better, if 9820 is only divisible by 1 and 9820, then it is a prime number, and if 9820 is divisible by more than 9820 and 1, then it is a composite number.
The factors of 9820 are as follows:
1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820
Therefore, since 9820 is divisible by more than one and itself, the answer to the
question "Is 9820 prime or composite?" is highlighted in blue below.
composite
Is 9821 prime or composite?
OK. Now you know that 9820 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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