Q: Is 1,620,270 a Composite Number?

Why is 1,620,270 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 1,620,270 can be evenly divided by 1 2 3 5 6 9 10 15 17 18 27 30 34 45 51 54 85 90 102 135 153 170 255 270 306 353 459 510 706 765 918 1,059 1,530 1,765 2,118 2,295 3,177 3,530 4,590 5,295 6,001 6,354 9,531 10,590 12,002 15,885 18,003 19,062 30,005 31,770 36,006 47,655 54,009 60,010 90,015 95,310 108,018 162,027 180,030 270,045 324,054 540,090 810,135 and 1,620,270, with no remainder.

Since 1,620,270 cannot be divided by just 1 and 1,620,270, 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).