To determine if 8380 is a prime number or a composite number, we simply look at the factors for 8380.
If the factors of 8380 are only 8380 and 1, then we know that 8380 is a prime number. Otherwise, 8380 is a composite number.
To explain better, if 8380 is only divisible by 1 and 8380, then it is a prime number, and if 8380 is divisible by more than 8380 and 1, then it is a composite number.
The factors of 8380 are as follows:
1, 2, 4, 5, 10, 20, 419, 838, 1676, 2095, 4190, 8380
Therefore, since 8380 is divisible by more than one and itself, the answer to the
question "Is 8380 prime or composite?" is highlighted in blue below.
composite
Is 8381 prime or composite?
OK. Now you know that 8380 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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