Q: Is 1,385,475 a Composite Number?

Why is 1,385,475 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 1,385,475 can be evenly divided by 1 3 5 7 13 15 21 25 29 35 39 49 65 75 87 91 105 145 147 175 195 203 245 273 325 377 435 455 525 609 637 725 735 975 1,015 1,131 1,225 1,365 1,421 1,885 1,911 2,175 2,275 2,639 3,045 3,185 3,675 4,263 5,075 5,655 6,825 7,105 7,917 9,425 9,555 13,195 15,225 15,925 18,473 21,315 28,275 35,525 39,585 47,775 55,419 65,975 92,365 106,575 197,925 277,095 461,825 and 1,385,475, with no remainder.

Since 1,385,475 cannot be divided by just 1 and 1,385,475, 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).