Q: Is 21,202,120 a Composite Number?

Why is 21,202,120 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 21,202,120 can be evenly divided by 1 2 4 5 8 10 20 40 53 73 106 137 146 212 265 274 292 365 424 530 548 584 685 730 1,060 1,096 1,370 1,460 2,120 2,740 2,920 3,869 5,480 7,261 7,738 10,001 14,522 15,476 19,345 20,002 29,044 30,952 36,305 38,690 40,004 50,005 58,088 72,610 77,380 80,008 100,010 145,220 154,760 200,020 290,440 400,040 530,053 1,060,106 2,120,212 2,650,265 4,240,424 5,300,530 10,601,060 and 21,202,120, with no remainder.

Since 21,202,120 cannot be divided by just 1 and 21,202,120, 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).