Q: Is 20,016,540 a Composite Number?

Why is 20,016,540 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 20,016,540 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 61 90 122 180 183 244 305 366 549 610 732 915 1,098 1,220 1,823 1,830 2,196 2,745 3,646 3,660 5,469 5,490 7,292 9,115 10,938 10,980 16,407 18,230 21,876 27,345 32,814 36,460 54,690 65,628 82,035 109,380 111,203 164,070 222,406 328,140 333,609 444,812 556,015 667,218 1,000,827 1,112,030 1,334,436 1,668,045 2,001,654 2,224,060 3,336,090 4,003,308 5,004,135 6,672,180 10,008,270 and 20,016,540, with no remainder.

Since 20,016,540 cannot be divided by just 1 and 20,016,540, 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).