Q: Is 21,603,204 a Composite Number?

Why is 21,603,204 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 21,603,204 can be evenly divided by 1 2 3 4 6 7 9 12 14 18 21 28 36 42 59 63 84 118 126 177 236 252 354 413 531 708 826 1,062 1,239 1,453 1,652 2,124 2,478 2,906 3,717 4,359 4,956 5,812 7,434 8,718 10,171 13,077 14,868 17,436 20,342 26,154 30,513 40,684 52,308 61,026 85,727 91,539 122,052 171,454 183,078 257,181 342,908 366,156 514,362 600,089 771,543 1,028,724 1,200,178 1,543,086 1,800,267 2,400,356 3,086,172 3,600,534 5,400,801 7,201,068 10,801,602 and 21,603,204, with no remainder.

Since 21,603,204 cannot be divided by just 1 and 21,603,204, 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).