Q: Is 509,216 a Prime Number?
A: No, 509,216 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 509216 can be evenly divided by 1 2 4 8 16 32 15,913 31,826 63,652 127,304 254,608 and 509,216, with no remainder.
Since 509,216 cannot be divided by just 1 and 509,216, it is not a prime number.