Q: Is 1,212,720 a Composite Number?

Why is 1,212,720 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 1,212,720 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 31 40 48 60 62 80 93 120 124 155 163 186 240 248 310 326 372 465 489 496 620 652 744 815 930 978 1,240 1,304 1,488 1,630 1,860 1,956 2,445 2,480 2,608 3,260 3,720 3,912 4,890 5,053 6,520 7,440 7,824 9,780 10,106 13,040 15,159 19,560 20,212 25,265 30,318 39,120 40,424 50,530 60,636 75,795 80,848 101,060 121,272 151,590 202,120 242,544 303,180 404,240 606,360 and 1,212,720, with no remainder.

Since 1,212,720 cannot be divided by just 1 and 1,212,720, 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).