Q: Is 978,515 a Prime Number?

A: No, 978,515 is not a prime number.

Why is 978,515 not a prime number?

A prime number is a natural number, greater than one, that can only be divided by 1 and itself.

The number 978515 can be evenly divided by 1 5 31 59 107 155 295 535 1,829 3,317 6,313 9,145 16,585 31,565 195,703 and 978,515, with no remainder.

Since 978,515 cannot be divided by just 1 and 978,515, it is not a prime number.

Number	978,513	978,514	978,516	978,517
Prime?	no	no	no	no

All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

General Questions

Factoring Questions

Calculation Questions

Miscellaneous Questions