Q: Is 21,331,300 a Composite Number?

Why is 21,331,300 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 21,331,300 can be evenly divided by 1 2 4 5 10 19 20 25 38 50 76 95 100 103 109 190 206 218 380 412 436 475 515 545 950 1,030 1,090 1,900 1,957 2,060 2,071 2,180 2,575 2,725 3,914 4,142 5,150 5,450 7,828 8,284 9,785 10,300 10,355 10,900 11,227 19,570 20,710 22,454 39,140 41,420 44,908 48,925 51,775 56,135 97,850 103,550 112,270 195,700 207,100 213,313 224,540 280,675 426,626 561,350 853,252 1,066,565 1,122,700 2,133,130 4,266,260 5,332,825 10,665,650 and 21,331,300, with no remainder.

Since 21,331,300 cannot be divided by just 1 and 21,331,300, 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).