Q: Is 121,791 a Prime Number?
A: No, 121,791 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 121791 can be evenly divided by 1 3 40,597 and 121,791, with no remainder.
Since 121,791 cannot be divided by just 1 and 121,791, it is not a prime number.