Q: Is 1,213,680 a Composite Number?

Why is 1,213,680 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 1,213,680 can be evenly divided by 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 39 40 48 52 60 65 78 80 104 120 130 156 195 208 240 260 312 389 390 520 624 778 780 1,040 1,167 1,556 1,560 1,945 2,334 3,112 3,120 3,890 4,668 5,057 5,835 6,224 7,780 9,336 10,114 11,670 15,171 15,560 18,672 20,228 23,340 25,285 30,342 31,120 40,456 46,680 50,570 60,684 75,855 80,912 93,360 101,140 121,368 151,710 202,280 242,736 303,420 404,560 606,840 and 1,213,680, with no remainder.

Since 1,213,680 cannot be divided by just 1 and 1,213,680, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).