Q: Is 511,742 a Prime Number?
A: No, 511,742 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 511742 can be evenly divided by 1 2 7 11 14 22 77 154 3,323 6,646 23,261 36,553 46,522 73,106 255,871 and 511,742, with no remainder.
Since 511,742 cannot be divided by just 1 and 511,742, it is not a prime number.