To determine if 7870 is a prime number or a composite number, we simply look at the factors for 7870.
If the factors of 7870 are only 7870 and 1, then we know that 7870 is a prime number. Otherwise, 7870 is a composite number.
To explain better, if 7870 is only divisible by 1 and 7870, then it is a prime number, and if 7870 is divisible by more than 7870 and 1, then it is a composite number.
The factors of 7870 are as follows:
1, 2, 5, 10, 787, 1574, 3935, 7870
Therefore, since 7870 is divisible by more than one and itself, the answer to the
question "Is 7870 prime or composite?" is highlighted in blue below.
composite
Is 7871 prime or composite?
OK. Now you know that 7870 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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