Q: Is 726,243 a Prime Number?
A: No, 726,243 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 726243 can be evenly divided by 1 3 7 21 34,583 103,749 242,081 and 726,243, with no remainder.
Since 726,243 cannot be divided by just 1 and 726,243, it is not a prime number.