Q: Is 2,138,175 a Composite Number?

Why is 2,138,175 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 2,138,175 can be evenly divided by 1 3 5 9 13 15 17 25 39 43 45 51 65 75 85 117 129 153 195 215 221 225 255 325 387 425 559 585 645 663 731 765 975 1,075 1,105 1,275 1,677 1,935 1,989 2,193 2,795 2,925 3,225 3,315 3,655 3,825 5,031 5,525 6,579 8,385 9,503 9,675 9,945 10,965 13,975 16,575 18,275 25,155 28,509 32,895 41,925 47,515 49,725 54,825 85,527 125,775 142,545 164,475 237,575 427,635 712,725 and 2,138,175, with no remainder.

Since 2,138,175 cannot be divided by just 1 and 2,138,175, 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).