Q: Is 138,729 a Prime Number?
A: No, 138,729 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 138729 can be evenly divided by 1 3 131 353 393 1,059 46,243 and 138,729, with no remainder.
Since 138,729 cannot be divided by just 1 and 138,729, it is not a prime number.