Q: Is 1,555,224 a Composite Number?

Why is 1,555,224 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 1,555,224 can be evenly divided by 1 2 3 4 6 8 11 12 22 24 33 43 44 66 86 88 129 132 137 172 258 264 274 344 411 473 516 548 822 946 1,032 1,096 1,419 1,507 1,644 1,892 2,838 3,014 3,288 3,784 4,521 5,676 5,891 6,028 9,042 11,352 11,782 12,056 17,673 18,084 23,564 35,346 36,168 47,128 64,801 70,692 129,602 141,384 194,403 259,204 388,806 518,408 777,612 and 1,555,224, with no remainder.

Since 1,555,224 cannot be divided by just 1 and 1,555,224, 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).