Q: Is 21,495,150 a Composite Number?

Why is 21,495,150 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 21,495,150 can be evenly divided by 1 2 3 5 6 9 10 15 18 25 30 37 45 50 74 75 90 111 150 185 222 225 333 370 450 555 666 925 1,110 1,291 1,665 1,850 2,582 2,775 3,330 3,873 5,550 6,455 7,746 8,325 11,619 12,910 16,650 19,365 23,238 32,275 38,730 47,767 58,095 64,550 95,534 96,825 116,190 143,301 193,650 238,835 286,602 290,475 429,903 477,670 580,950 716,505 859,806 1,194,175 1,433,010 2,149,515 2,388,350 3,582,525 4,299,030 7,165,050 10,747,575 and 21,495,150, with no remainder.

Since 21,495,150 cannot be divided by just 1 and 21,495,150, 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).