Q: Is 355,405 a Prime Number?
A: No, 355,405 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 355405 can be evenly divided by 1 5 71,081 and 355,405, with no remainder.
Since 355,405 cannot be divided by just 1 and 355,405, it is not a prime number.