Q: Is 1,405,530 a Composite Number?

Why is 1,405,530 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 1,405,530 can be evenly divided by 1 2 3 5 6 7 9 10 14 15 18 21 23 30 35 42 45 46 63 69 70 90 97 105 115 126 138 161 194 207 210 230 291 315 322 345 414 483 485 582 630 679 690 805 873 966 970 1,035 1,358 1,449 1,455 1,610 1,746 2,037 2,070 2,231 2,415 2,898 2,910 3,395 4,074 4,365 4,462 4,830 6,111 6,693 6,790 7,245 8,730 10,185 11,155 12,222 13,386 14,490 15,617 20,079 20,370 22,310 30,555 31,234 33,465 40,158 46,851 61,110 66,930 78,085 93,702 100,395 140,553 156,170 200,790 234,255 281,106 468,510 702,765 and 1,405,530, with no remainder.

Since 1,405,530 cannot be divided by just 1 and 1,405,530, 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).