Q: Is 1,423,406 a Prime Number?
A: No, 1,423,406 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 1423406 can be evenly divided by 1 2 211 422 3,373 6,746 711,703 and 1,423,406, with no remainder.
Since 1,423,406 cannot be divided by just 1 and 1,423,406, it is not a prime number.