Q: Is 857,142 a Composite Number?

Why is 857,142 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 857,142 can be evenly divided by 1 2 3 6 9 11 13 18 22 26 27 33 37 39 54 66 74 78 81 99 111 117 143 162 198 222 234 286 297 333 351 407 429 481 594 666 702 814 858 891 962 999 1,053 1,221 1,287 1,443 1,782 1,998 2,106 2,442 2,574 2,886 2,997 3,663 3,861 4,329 5,291 5,994 7,326 7,722 8,658 10,582 10,989 11,583 12,987 15,873 21,978 23,166 25,974 31,746 32,967 38,961 47,619 65,934 77,922 95,238 142,857 285,714 428,571 and 857,142, with no remainder.

Since 857,142 cannot be divided by just 1 and 857,142, 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).