Q: Is 491,405 a Prime Number?
A: No, 491,405 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 491405 can be evenly divided by 1 5 29 145 3,389 16,945 98,281 and 491,405, with no remainder.
Since 491,405 cannot be divided by just 1 and 491,405, it is not a prime number.