Q: Is 21,403,600 a Composite Number?

Why is 21,403,600 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 21,403,600 can be evenly divided by 1 2 4 5 8 10 16 20 25 40 50 73 80 100 146 200 292 365 400 584 730 733 1,168 1,460 1,466 1,825 2,920 2,932 3,650 3,665 5,840 5,864 7,300 7,330 11,728 14,600 14,660 18,325 29,200 29,320 36,650 53,509 58,640 73,300 107,018 146,600 214,036 267,545 293,200 428,072 535,090 856,144 1,070,180 1,337,725 2,140,360 2,675,450 4,280,720 5,350,900 10,701,800 and 21,403,600, with no remainder.

Since 21,403,600 cannot be divided by just 1 and 21,403,600, 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).