Q: Is 505,393 a Prime Number?
A: No, 505,393 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 505393 can be evenly divided by 1 7 17 31 119 137 217 527 959 2,329 3,689 4,247 16,303 29,729 72,199 and 505,393, with no remainder.
Since 505,393 cannot be divided by just 1 and 505,393, it is not a prime number.