To determine if 9840 is a prime number or a composite number, we simply look at the factors for 9840.
If the factors of 9840 are only 9840 and 1, then we know that 9840 is a prime number. Otherwise, 9840 is a composite number.
To explain better, if 9840 is only divisible by 1 and 9840, then it is a prime number, and if 9840 is divisible by more than 9840 and 1, then it is a composite number.
The factors of 9840 are as follows:
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 80, 82, 120, 123, 164, 205, 240, 246, 328, 410, 492, 615, 656, 820, 984, 1230, 1640, 1968, 2460, 3280, 4920, 9840
Therefore, since 9840 is divisible by more than one and itself, the answer to the
question "Is 9840 prime or composite?" is highlighted in blue below.
composite
Is 9841 prime or composite?
OK. Now you know that 9840 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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