Q: Is 1,668,720 a Composite Number?

Why is 1,668,720 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 1,668,720 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 40 48 51 60 68 80 85 102 120 136 170 204 240 255 272 340 408 409 510 680 816 818 1,020 1,227 1,360 1,636 2,040 2,045 2,454 3,272 4,080 4,090 4,908 6,135 6,544 6,953 8,180 9,816 12,270 13,906 16,360 19,632 20,859 24,540 27,812 32,720 34,765 41,718 49,080 55,624 69,530 83,436 98,160 104,295 111,248 139,060 166,872 208,590 278,120 333,744 417,180 556,240 834,360 and 1,668,720, with no remainder.

Since 1,668,720 cannot be divided by just 1 and 1,668,720, 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).