Q: Is 729 a Prime Number?
A: No, 729 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 729 can be evenly divided by 1 3 9 27 81 243 and 729, with no remainder.
Since 729 cannot be divided by just 1 and 729, it is not a prime number.