Q: Is 21,926,340 a Composite Number?

Why is 21,926,340 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 21,926,340 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 181 362 543 673 724 905 1,086 1,346 1,629 1,810 2,019 2,172 2,692 2,715 3,258 3,365 3,620 4,038 5,430 6,057 6,516 6,730 8,076 8,145 10,095 10,860 12,114 13,460 16,290 20,190 24,228 30,285 32,580 40,380 60,570 121,140 121,813 243,626 365,439 487,252 609,065 730,878 1,096,317 1,218,130 1,461,756 1,827,195 2,192,634 2,436,260 3,654,390 4,385,268 5,481,585 7,308,780 10,963,170 and 21,926,340, with no remainder.

Since 21,926,340 cannot be divided by just 1 and 21,926,340, 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).