To determine if 9800 is a prime number or a composite number, we simply look at the factors for 9800.
If the factors of 9800 are only 9800 and 1, then we know that 9800 is a prime number. Otherwise, 9800 is a composite number.
To explain better, if 9800 is only divisible by 1 and 9800, then it is a prime number, and if 9800 is divisible by more than 9800 and 1, then it is a composite number.
The factors of 9800 are as follows:
1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 9800
Therefore, since 9800 is divisible by more than one and itself, the answer to the
question "Is 9800 prime or composite?" is highlighted in blue below.
composite
Is 9801 prime or composite?
OK. Now you know that 9800 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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