Q: Is 1,389,240 a Composite Number?

Why is 1,389,240 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 1,389,240 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 30 34 36 40 45 51 60 68 72 85 90 102 120 136 153 170 180 204 227 255 306 340 360 408 454 510 612 680 681 765 908 1,020 1,135 1,224 1,362 1,530 1,816 2,040 2,043 2,270 2,724 3,060 3,405 3,859 4,086 4,540 5,448 6,120 6,810 7,718 8,172 9,080 10,215 11,577 13,620 15,436 16,344 19,295 20,430 23,154 27,240 30,872 34,731 38,590 40,860 46,308 57,885 69,462 77,180 81,720 92,616 115,770 138,924 154,360 173,655 231,540 277,848 347,310 463,080 694,620 and 1,389,240, with no remainder.

Since 1,389,240 cannot be divided by just 1 and 1,389,240, 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).