Q: Is 1,428,840 a Composite Number?

Why is 1,428,840 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 1,428,840 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 30 35 36 40 42 45 49 54 56 60 63 70 72 81 84 90 98 105 108 120 126 135 140 147 162 168 180 189 196 210 216 243 245 252 270 280 294 315 324 360 378 392 405 420 441 486 490 504 540 567 588 630 648 729 735 756 810 840 882 945 972 980 1,080 1,134 1,176 1,215 1,260 1,323 1,458 1,470 1,512 1,620 1,701 1,764 1,890 1,944 1,960 2,205 2,268 2,430 2,520 2,646 2,835 2,916 2,940 3,240 3,402 3,528 3,645 3,780 3,969 4,410 4,536 4,860 5,103 5,292 5,670 5,832 5,880 6,615 6,804 7,290 7,560 7,938 8,505 8,820 9,720 10,206 10,584 11,340 11,907 13,230 13,608 14,580 15,876 17,010 17,640 19,845 20,412 22,680 23,814 25,515 26,460 29,160 31,752 34,020 35,721 39,690 40,824 47,628 51,030 52,920 59,535 68,040 71,442 79,380 95,256 102,060 119,070 142,884 158,760 178,605 204,120 238,140 285,768 357,210 476,280 714,420 and 1,428,840, with no remainder.

Since 1,428,840 cannot be divided by just 1 and 1,428,840, 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).