Q: Is 121,891 a Prime Number?
A: No, 121,891 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 121891 can be evenly divided by 1 7 11 77 1,583 11,081 17,413 and 121,891, with no remainder.
Since 121,891 cannot be divided by just 1 and 121,891, it is not a prime number.