Q: Is 511,641 a Prime Number?
A: No, 511,641 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 511641 can be evenly divided by 1 3 9 13 39 117 4,373 13,119 39,357 56,849 170,547 and 511,641, with no remainder.
Since 511,641 cannot be divided by just 1 and 511,641, it is not a prime number.