Q: Is 1,338,729 a Prime Number?
A: No, 1,338,729 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 1338729 can be evenly divided by 1 3 7 21 49 147 343 1,029 1,301 3,903 9,107 27,321 63,749 191,247 446,243 and 1,338,729, with no remainder.
Since 1,338,729 cannot be divided by just 1 and 1,338,729, it is not a prime number.