Q: Is 21,201,222 a Composite Number?

Why is 21,201,222 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 21,201,222 can be evenly divided by 1 2 3 6 7 14 21 37 42 49 74 98 111 147 222 259 294 518 777 1,554 1,813 1,949 3,626 3,898 5,439 5,847 10,878 11,694 13,643 27,286 40,929 72,113 81,858 95,501 144,226 191,002 216,339 286,503 432,678 504,791 573,006 1,009,582 1,514,373 3,028,746 3,533,537 7,067,074 10,600,611 and 21,201,222, with no remainder.

Since 21,201,222 cannot be divided by just 1 and 21,201,222, 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).