Q: Is 812,175 a Composite Number?

Why is 812,175 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 812,175 can be evenly divided by 1 3 5 7 13 15 17 21 25 35 39 49 51 65 75 85 91 105 119 147 175 195 221 245 255 273 325 357 425 455 525 595 637 663 735 833 975 1,105 1,225 1,275 1,365 1,547 1,785 1,911 2,275 2,499 2,975 3,185 3,315 3,675 4,165 4,641 5,525 6,825 7,735 8,925 9,555 10,829 12,495 15,925 16,575 20,825 23,205 32,487 38,675 47,775 54,145 62,475 116,025 162,435 270,725 and 812,175, with no remainder.

Since 812,175 cannot be divided by just 1 and 812,175, 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).