Q: Is 420,426 a Prime Number?
A: No, 420,426 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 420426 can be evenly divided by 1 2 3 6 9 18 23,357 46,714 70,071 140,142 210,213 and 420,426, with no remainder.
Since 420,426 cannot be divided by just 1 and 420,426, it is not a prime number.