Q: Is 423,478 a Prime Number?
A: No, 423,478 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 423478 can be evenly divided by 1 2 11 22 19,249 38,498 211,739 and 423,478, with no remainder.
Since 423,478 cannot be divided by just 1 and 423,478, it is not a prime number.