Q: Is 1,242,216 a Composite Number?

Why is 1,242,216 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 1,242,216 can be evenly divided by 1 2 3 4 6 8 9 12 18 24 27 36 54 71 72 81 108 142 162 213 216 243 284 324 426 486 568 639 648 729 852 972 1,278 1,458 1,704 1,917 1,944 2,187 2,556 2,916 3,834 4,374 5,112 5,751 5,832 7,668 8,748 11,502 15,336 17,253 17,496 23,004 34,506 46,008 51,759 69,012 103,518 138,024 155,277 207,036 310,554 414,072 621,108 and 1,242,216, with no remainder.

Since 1,242,216 cannot be divided by just 1 and 1,242,216, 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).