Q: Is 1,242,540 a Composite Number?

Why is 1,242,540 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 1,242,540 can be evenly divided by 1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 59 60 65 78 81 90 108 117 118 130 135 156 162 177 180 195 234 236 260 270 295 324 351 354 390 405 468 531 540 585 590 702 708 767 780 810 885 1,053 1,062 1,170 1,180 1,404 1,534 1,593 1,620 1,755 1,770 2,106 2,124 2,301 2,340 2,655 3,068 3,186 3,510 3,540 3,835 4,212 4,602 4,779 5,265 5,310 6,372 6,903 7,020 7,670 7,965 9,204 9,558 10,530 10,620 11,505 13,806 15,340 15,930 19,116 20,709 21,060 23,010 23,895 27,612 31,860 34,515 41,418 46,020 47,790 62,127 69,030 82,836 95,580 103,545 124,254 138,060 207,090 248,508 310,635 414,180 621,270 and 1,242,540, with no remainder.

Since 1,242,540 cannot be divided by just 1 and 1,242,540, 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).