Q: Is 21,403,000 a Composite Number?

Why is 21,403,000 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 21,403,000 can be evenly divided by 1 2 4 5 8 10 17 20 25 34 40 50 68 85 100 125 136 170 200 250 340 425 500 680 850 1,000 1,259 1,700 2,125 2,518 3,400 4,250 5,036 6,295 8,500 10,072 12,590 17,000 21,403 25,180 31,475 42,806 50,360 62,950 85,612 107,015 125,900 157,375 171,224 214,030 251,800 314,750 428,060 535,075 629,500 856,120 1,070,150 1,259,000 2,140,300 2,675,375 4,280,600 5,350,750 10,701,500 and 21,403,000, with no remainder.

Since 21,403,000 cannot be divided by just 1 and 21,403,000, 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).