Q: Is 725,121 a Prime Number?
A: No, 725,121 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 725121 can be evenly divided by 1 3 9 23 31 69 93 113 207 279 339 713 1,017 2,139 2,599 3,503 6,417 7,797 10,509 23,391 31,527 80,569 241,707 and 725,121, with no remainder.
Since 725,121 cannot be divided by just 1 and 725,121, it is not a prime number.