Q: Is 726,920 a Prime Number?
A: No, 726,920 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 726920 can be evenly divided by 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 1,069 2,138 4,276 5,345 8,552 10,690 18,173 21,380 36,346 42,760 72,692 90,865 145,384 181,730 363,460 and 726,920, with no remainder.
Since 726,920 cannot be divided by just 1 and 726,920, it is not a prime number.