Q: Is 21,650,550 a Composite Number?

Why is 21,650,550 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 21,650,550 can be evenly divided by 1 2 3 5 6 10 15 25 30 37 47 50 74 75 83 94 111 141 150 166 185 222 235 249 282 370 415 470 498 555 705 830 925 1,110 1,175 1,245 1,410 1,739 1,850 2,075 2,350 2,490 2,775 3,071 3,478 3,525 3,901 4,150 5,217 5,550 6,142 6,225 7,050 7,802 8,695 9,213 10,434 11,703 12,450 15,355 17,390 18,426 19,505 23,406 26,085 30,710 39,010 43,475 46,065 52,170 58,515 76,775 86,950 92,130 97,525 117,030 130,425 144,337 153,550 195,050 230,325 260,850 288,674 292,575 433,011 460,650 585,150 721,685 866,022 1,443,370 2,165,055 3,608,425 4,330,110 7,216,850 10,825,275 and 21,650,550, with no remainder.

Since 21,650,550 cannot be divided by just 1 and 21,650,550, 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).