Q: Is 1,278,780 a Composite Number?
A: Yes, 1,278,780 is a composite number.
The number 1,278,780 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 30 60 21,313 42,626 63,939 85,252 106,565 127,878 213,130 255,756 319,695 426,260 639,390 and 1,278,780, with no remainder.
Since 1,278,780 cannot be divided by just 1 and 1,278,780, it is a composite number.