Q: Is 1,223,955 a Prime Number?
A: No, 1,223,955 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 1223955 can be evenly divided by 1 3 5 9 15 45 59 177 295 461 531 885 1,383 2,305 2,655 4,149 6,915 20,745 27,199 81,597 135,995 244,791 407,985 and 1,223,955, with no remainder.
Since 1,223,955 cannot be divided by just 1 and 1,223,955, it is not a prime number.