To determine if 9720 is a prime number or a composite number, we simply look at the factors for 9720.
If the factors of 9720 are only 9720 and 1, then we know that 9720 is a prime number. Otherwise, 9720 is a composite number.
To explain better, if 9720 is only divisible by 1 and 9720, then it is a prime number, and if 9720 is divisible by more than 9720 and 1, then it is a composite number.
The factors of 9720 are as follows:
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 810, 972, 1080, 1215, 1620, 1944, 2430, 3240, 4860, 9720
Therefore, since 9720 is divisible by more than one and itself, the answer to the
question "Is 9720 prime or composite?" is highlighted in blue below.
composite
Is 9721 prime or composite?
OK. Now you know that 9720 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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