To determine if 9420 is a prime number or a composite number, we simply look at the factors for 9420.
If the factors of 9420 are only 9420 and 1, then we know that 9420 is a prime number. Otherwise, 9420 is a composite number.
To explain better, if 9420 is only divisible by 1 and 9420, then it is a prime number, and if 9420 is divisible by more than 9420 and 1, then it is a composite number.
The factors of 9420 are as follows:
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1570, 1884, 2355, 3140, 4710, 9420
Therefore, since 9420 is divisible by more than one and itself, the answer to the
question "Is 9420 prime or composite?" is highlighted in blue below.
composite
Is 9421 prime or composite?
OK. Now you know that 9420 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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