Q: Is 138,645 a Composite Number?
A: Yes, 138,645 is a composite number.
The number 138,645 can be evenly divided by 1 3 5 9 13 15 27 39 45 65 79 117 135 195 237 351 395 585 711 1,027 1,185 1,755 2,133 3,081 3,555 5,135 9,243 10,665 15,405 27,729 46,215 and 138,645, with no remainder.
Since 138,645 cannot be divided by just 1 and 138,645, it is a composite number.