To determine if 8240 is a prime number or a composite number, we simply look at the factors for 8240.
If the factors of 8240 are only 8240 and 1, then we know that 8240 is a prime number. Otherwise, 8240 is a composite number.
To explain better, if 8240 is only divisible by 1 and 8240, then it is a prime number, and if 8240 is divisible by more than 8240 and 1, then it is a composite number.
The factors of 8240 are as follows:
1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1648, 2060, 4120, 8240
Therefore, since 8240 is divisible by more than one and itself, the answer to the
question "Is 8240 prime or composite?" is highlighted in blue below.
composite
Is 8241 prime or composite?
OK. Now you know that 8240 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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