Q: Is 1,593,405 a Composite Number?

Why is 1,593,405 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 1,593,405 can be evenly divided by 1 3 5 9 11 15 27 29 33 37 45 55 87 99 111 135 145 165 185 261 297 319 333 407 435 495 555 783 957 999 1,073 1,221 1,305 1,485 1,595 1,665 2,035 2,871 3,219 3,663 3,915 4,785 4,995 5,365 6,105 8,613 9,657 10,989 11,803 14,355 16,095 18,315 28,971 35,409 43,065 48,285 54,945 59,015 106,227 144,855 177,045 318,681 531,135 and 1,593,405, with no remainder.

Since 1,593,405 cannot be divided by just 1 and 1,593,405, 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).