Q: Is 20,240,325 a Composite Number?

Why is 20,240,325 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 20,240,325 can be evenly divided by 1 3 5 7 9 15 21 25 35 45 63 71 75 105 175 181 213 225 315 355 497 525 543 639 905 1,065 1,267 1,491 1,575 1,629 1,775 2,485 2,715 3,195 3,801 4,473 4,525 5,325 6,335 7,455 8,145 11,403 12,425 12,851 13,575 15,975 19,005 22,365 31,675 37,275 38,553 40,725 57,015 64,255 89,957 95,025 111,825 115,659 192,765 269,871 285,075 321,275 449,785 578,295 809,613 963,825 1,349,355 2,248,925 2,891,475 4,048,065 6,746,775 and 20,240,325, with no remainder.

Since 20,240,325 cannot be divided by just 1 and 20,240,325, 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).