Q: Is 855,878 a Prime Number?
A: No, 855,878 is 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 855878 can be evenly divided by 1 2 427,939 and 855,878, with no remainder.
Since 855,878 cannot be divided by just 1 and 855,878, it is not a prime number.