Q: Is 121,917 a Prime Number?
A: No, 121,917 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 121917 can be evenly divided by 1 3 40,639 and 121,917, with no remainder.
Since 121,917 cannot be divided by just 1 and 121,917, it is not a prime number.