Q: Is 20,124,450 a Composite Number?

Why is 20,124,450 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 20,124,450 can be evenly divided by 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 81 90 135 150 162 225 270 405 450 675 810 1,350 2,025 4,050 4,969 9,938 14,907 24,845 29,814 44,721 49,690 74,535 89,442 124,225 134,163 149,070 223,605 248,450 268,326 372,675 402,489 447,210 670,815 745,350 804,978 1,118,025 1,341,630 2,012,445 2,236,050 3,354,075 4,024,890 6,708,150 10,062,225 and 20,124,450, with no remainder.

Since 20,124,450 cannot be divided by just 1 and 20,124,450, 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).