Q: Is 723,145 a Prime Number?
A: No, 723,145 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 723145 can be evenly divided by 1 5 144,629 and 723,145, with no remainder.
Since 723,145 cannot be divided by just 1 and 723,145, it is not a prime number.