Q: Is 667,422 a Prime Number?
A: No, 667,422 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 667422 can be evenly divided by 1 2 3 6 7 9 14 18 21 42 63 126 5,297 10,594 15,891 31,782 37,079 47,673 74,158 95,346 111,237 222,474 333,711 and 667,422, with no remainder.
Since 667,422 cannot be divided by just 1 and 667,422, it is not a prime number.