Q: Is 1,686,090 a Composite Number?

Why is 1,686,090 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 1,686,090 can be evenly divided by 1 2 3 5 6 7 10 14 15 21 30 31 35 37 42 49 62 70 74 93 98 105 111 147 155 185 186 210 217 222 245 259 294 310 370 434 465 490 518 555 651 735 777 930 1,085 1,110 1,147 1,295 1,302 1,470 1,519 1,554 1,813 2,170 2,294 2,590 3,038 3,255 3,441 3,626 3,885 4,557 5,439 5,735 6,510 6,882 7,595 7,770 8,029 9,065 9,114 10,878 11,470 15,190 16,058 17,205 18,130 22,785 24,087 27,195 34,410 40,145 45,570 48,174 54,390 56,203 80,290 112,406 120,435 168,609 240,870 281,015 337,218 562,030 843,045 and 1,686,090, with no remainder.

Since 1,686,090 cannot be divided by just 1 and 1,686,090, 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).