Q: Is 123,878 a Prime Number?

A: No, 123,878 is not a prime number.

Why is 123,878 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 123878 can be evenly divided by 1 2 23 46 2,693 5,386 61,939 and 123,878, with no remainder.

Since 123,878 cannot be divided by just 1 and 123,878, it is not a prime number.

Number	123,876	123,877	123,879	123,880
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