Q: Is 1,605,150 a Composite Number?

Why is 1,605,150 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 1,605,150 can be evenly divided by 1 2 3 5 6 9 10 15 18 25 27 29 30 41 45 50 54 58 75 82 87 90 123 135 145 150 174 205 225 246 261 270 290 369 410 435 450 522 615 675 725 738 783 870 1,025 1,107 1,189 1,230 1,305 1,350 1,450 1,566 1,845 2,050 2,175 2,214 2,378 2,610 3,075 3,567 3,690 3,915 4,350 5,535 5,945 6,150 6,525 7,134 7,830 9,225 10,701 11,070 11,890 13,050 17,835 18,450 19,575 21,402 27,675 29,725 32,103 35,670 39,150 53,505 55,350 59,450 64,206 89,175 107,010 160,515 178,350 267,525 321,030 535,050 802,575 and 1,605,150, with no remainder.

Since 1,605,150 cannot be divided by just 1 and 1,605,150, 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).