Q: Is 121,655 a Prime Number?
A: No, 121,655 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 121655 can be evenly divided by 1 5 29 145 839 4,195 24,331 and 121,655, with no remainder.
Since 121,655 cannot be divided by just 1 and 121,655, it is not a prime number.