Q: Is 511,216 a Prime Number?
A: No, 511,216 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 511216 can be evenly divided by 1 2 4 8 16 89 178 356 359 712 718 1,424 1,436 2,872 5,744 31,951 63,902 127,804 255,608 and 511,216, with no remainder.
Since 511,216 cannot be divided by just 1 and 511,216, it is not a prime number.