Q: Is 2,728,125 a Composite Number?
A: Yes, 2,728,125 is a composite number.
The number 2,728,125 can be evenly divided by 1 3 5 9 15 25 45 75 97 125 225 291 375 485 625 873 1,125 1,455 1,875 2,425 3,125 4,365 5,625 7,275 9,375 12,125 21,825 28,125 36,375 60,625 109,125 181,875 303,125 545,625 909,375 and 2,728,125, with no remainder.
Since 2,728,125 cannot be divided by just 1 and 2,728,125, it is a composite number.