Q: Is 25,278,075 a Composite Number?

Why is 25,278,075 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 25,278,075 can be evenly divided by 1 3 5 9 15 19 25 27 45 57 73 75 81 95 135 171 219 225 243 285 365 405 475 513 657 675 729 855 1,095 1,215 1,387 1,425 1,539 1,825 1,971 2,025 2,565 3,285 3,645 4,161 4,275 4,617 5,475 5,913 6,075 6,935 7,695 9,855 12,483 12,825 13,851 16,425 17,739 18,225 20,805 23,085 29,565 34,675 37,449 38,475 49,275 53,217 62,415 69,255 88,695 104,025 112,347 115,425 147,825 187,245 266,085 312,075 337,041 346,275 443,475 561,735 936,225 1,011,123 1,330,425 1,685,205 2,808,675 5,055,615 8,426,025 and 25,278,075, with no remainder.

Since 25,278,075 cannot be divided by just 1 and 25,278,075, 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).