Q: Is 1,728,340 a Prime Number?
A: No, 1,728,340 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 1728340 can be evenly divided by 1 2 4 5 10 20 103 206 412 515 839 1,030 1,678 2,060 3,356 4,195 8,390 16,780 86,417 172,834 345,668 432,085 864,170 and 1,728,340, with no remainder.
Since 1,728,340 cannot be divided by just 1 and 1,728,340, it is not a prime number.