Q: Is 21,252,060 a Composite Number?

Why is 21,252,060 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 21,252,060 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 30 36 37 45 60 74 90 111 148 180 185 222 333 370 444 555 666 740 1,110 1,332 1,665 2,220 3,191 3,330 6,382 6,660 9,573 12,764 15,955 19,146 28,719 31,910 38,292 47,865 57,438 63,820 95,730 114,876 118,067 143,595 191,460 236,134 287,190 354,201 472,268 574,380 590,335 708,402 1,062,603 1,180,670 1,416,804 1,771,005 2,125,206 2,361,340 3,542,010 4,250,412 5,313,015 7,084,020 10,626,030 and 21,252,060, with no remainder.

Since 21,252,060 cannot be divided by just 1 and 21,252,060, 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).