Q: Is 1,230,390 a Composite Number?

Why is 1,230,390 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 1,230,390 can be evenly divided by 1 2 3 5 6 7 9 10 14 15 18 21 27 30 31 35 42 45 49 54 62 63 70 81 90 93 98 105 126 135 147 155 162 186 189 210 217 245 270 279 294 310 315 378 405 434 441 465 490 558 567 630 651 735 810 837 882 930 945 1,085 1,134 1,302 1,323 1,395 1,470 1,519 1,674 1,890 1,953 2,170 2,205 2,511 2,646 2,790 2,835 3,038 3,255 3,906 3,969 4,185 4,410 4,557 5,022 5,670 5,859 6,510 6,615 7,595 7,938 8,370 9,114 9,765 11,718 12,555 13,230 13,671 15,190 17,577 19,530 19,845 22,785 25,110 27,342 29,295 35,154 39,690 41,013 45,570 58,590 68,355 82,026 87,885 123,039 136,710 175,770 205,065 246,078 410,130 615,195 and 1,230,390, with no remainder.

Since 1,230,390 cannot be divided by just 1 and 1,230,390, 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).