Q: Is 871,891 a Prime Number?
A: No, 871,891 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 871891 can be evenly divided by 1 19 109 421 2,071 7,999 45,889 and 871,891, with no remainder.
Since 871,891 cannot be divided by just 1 and 871,891, it is not a prime number.