Q: Is 505,430 a Prime Number?
A: No, 505,430 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 505430 can be evenly divided by 1 2 5 10 50,543 101,086 252,715 and 505,430, with no remainder.
Since 505,430 cannot be divided by just 1 and 505,430, it is not a prime number.