Q: Is 725,625 a Prime Number?
A: No, 725,625 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 725625 can be evenly divided by 1 3 5 9 15 25 27 43 45 75 125 129 135 215 225 375 387 625 645 675 1,075 1,125 1,161 1,875 1,935 3,225 3,375 5,375 5,625 5,805 9,675 16,125 16,875 26,875 29,025 48,375 80,625 145,125 241,875 and 725,625, with no remainder.
Since 725,625 cannot be divided by just 1 and 725,625, it is not a prime number.