Q: Is 1,620,216 a Composite Number?

Why is 1,620,216 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 1,620,216 can be evenly divided by 1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 104 108 117 156 216 234 312 351 468 577 702 936 1,154 1,404 1,731 2,308 2,808 3,462 4,616 5,193 6,924 7,501 10,386 13,848 15,002 15,579 20,772 22,503 30,004 31,158 41,544 45,006 60,008 62,316 67,509 90,012 124,632 135,018 180,024 202,527 270,036 405,054 540,072 810,108 and 1,620,216, with no remainder.

Since 1,620,216 cannot be divided by just 1 and 1,620,216, 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).