Q: Is 180,810 a Composite Number?

Why is 180,810 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 180,810 can be evenly divided by 1 2 3 5 6 7 9 10 14 15 18 21 30 35 41 42 45 49 63 70 82 90 98 105 123 126 147 205 210 245 246 287 294 315 369 410 441 490 574 615 630 735 738 861 882 1,230 1,435 1,470 1,722 1,845 2,009 2,205 2,583 2,870 3,690 4,018 4,305 4,410 5,166 6,027 8,610 10,045 12,054 12,915 18,081 20,090 25,830 30,135 36,162 60,270 90,405 and 180,810, with no remainder.

Since 180,810 cannot be divided by just 1 and 180,810, 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).