Q: Is 855,860 a Prime Number?
A: No, 855,860 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 855860 can be evenly divided by 1 2 4 5 10 20 42,793 85,586 171,172 213,965 427,930 and 855,860, with no remainder.
Since 855,860 cannot be divided by just 1 and 855,860, it is not a prime number.