Q: Is 21,055,350 a Composite Number?

Why is 21,055,350 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 21,055,350 can be evenly divided by 1 2 3 5 6 10 15 17 23 25 30 34 46 50 51 69 75 85 102 115 138 150 170 230 255 345 359 391 425 510 575 690 718 782 850 1,077 1,150 1,173 1,275 1,725 1,795 1,955 2,154 2,346 2,550 3,450 3,590 3,910 5,385 5,865 6,103 8,257 8,975 9,775 10,770 11,730 12,206 16,514 17,950 18,309 19,550 24,771 26,925 29,325 30,515 36,618 41,285 49,542 53,850 58,650 61,030 82,570 91,545 123,855 140,369 152,575 183,090 206,425 247,710 280,738 305,150 412,850 421,107 457,725 619,275 701,845 842,214 915,450 1,238,550 1,403,690 2,105,535 3,509,225 4,211,070 7,018,450 10,527,675 and 21,055,350, with no remainder.

Since 21,055,350 cannot be divided by just 1 and 21,055,350, 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).