Q: Is 509,456 a Prime Number?
A: No, 509,456 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 509456 can be evenly divided by 1 2 4 8 16 17 34 68 136 272 1,873 3,746 7,492 14,984 29,968 31,841 63,682 127,364 254,728 and 509,456, with no remainder.
Since 509,456 cannot be divided by just 1 and 509,456, it is not a prime number.