Q: Is 725,139 a Prime Number?
A: No, 725,139 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 725139 can be evenly divided by 1 3 9 27 107 251 321 753 963 2,259 2,889 6,777 26,857 80,571 241,713 and 725,139, with no remainder.
Since 725,139 cannot be divided by just 1 and 725,139, it is not a prime number.