Q: Is 122,478 a Prime Number?
A: No, 122,478 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 122478 can be evenly divided by 1 2 3 6 137 149 274 298 411 447 822 894 20,413 40,826 61,239 and 122,478, with no remainder.
Since 122,478 cannot be divided by just 1 and 122,478, it is not a prime number.