Q: Is 21,430,926 a Composite Number?

Why is 21,430,926 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 21,430,926 can be evenly divided by 1 2 3 6 9 11 18 22 27 33 54 66 99 109 198 218 297 327 331 594 654 662 981 993 1,199 1,962 1,986 2,398 2,943 2,979 3,597 3,641 5,886 5,958 7,194 7,282 8,937 10,791 10,923 17,874 21,582 21,846 32,373 32,769 36,079 64,746 65,538 72,158 98,307 108,237 196,614 216,474 324,711 396,869 649,422 793,738 974,133 1,190,607 1,948,266 2,381,214 3,571,821 7,143,642 10,715,463 and 21,430,926, with no remainder.

Since 21,430,926 cannot be divided by just 1 and 21,430,926, 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).