Q: Is 729,423 a Prime Number?
A: No, 729,423 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 729423 can be evenly divided by 1 3 9 81,047 243,141 and 729,423, with no remainder.
Since 729,423 cannot be divided by just 1 and 729,423, it is not a prime number.