Q: Is 6,431,320 a Composite Number?

Why is 6,431,320 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 6,431,320 can be evenly divided by 1 2 4 5 7 8 10 14 20 28 35 40 56 70 103 140 206 223 280 412 446 515 721 824 892 1,030 1,115 1,442 1,561 1,784 2,060 2,230 2,884 3,122 3,605 4,120 4,460 5,768 6,244 7,210 7,805 8,920 12,488 14,420 15,610 22,969 28,840 31,220 45,938 62,440 91,876 114,845 160,783 183,752 229,690 321,566 459,380 643,132 803,915 918,760 1,286,264 1,607,830 3,215,660 and 6,431,320, with no remainder.

Since 6,431,320 cannot be divided by just 1 and 6,431,320, 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).