Q: Is 6,870,780 a Composite Number?

Why is 6,870,780 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 6,870,780 can be evenly divided by 1 2 3 4 5 6 7 9 10 12 14 15 18 19 20 21 28 30 35 36 38 41 42 45 49 57 60 63 70 76 82 84 90 95 98 105 114 123 126 133 140 147 164 171 180 190 196 205 210 228 245 246 252 266 285 287 294 315 342 369 380 399 410 420 441 490 492 532 570 574 588 615 630 665 684 735 738 779 798 820 855 861 882 931 980 1,140 1,148 1,197 1,230 1,260 1,330 1,435 1,470 1,476 1,558 1,596 1,710 1,722 1,764 1,845 1,862 1,995 2,009 2,205 2,337 2,394 2,460 2,583 2,660 2,793 2,870 2,940 3,116 3,420 3,444 3,690 3,724 3,895 3,990 4,018 4,305 4,410 4,655 4,674 4,788 5,166 5,453 5,586 5,740 5,985 6,027 7,011 7,380 7,790 7,980 8,036 8,379 8,610 8,820 9,310 9,348 10,045 10,332 10,906 11,172 11,685 11,970 12,054 12,915 13,965 14,022 15,580 16,359 16,758 17,220 18,081 18,620 20,090 21,812 23,370 23,940 24,108 25,830 27,265 27,930 28,044 30,135 32,718 33,516 35,055 36,162 38,171 40,180 41,895 46,740 49,077 51,660 54,530 55,860 60,270 65,436 70,110 72,324 76,342 81,795 83,790 90,405 98,154 109,060 114,513 120,540 140,220 152,684 163,590 167,580 180,810 190,855 196,308 229,026 245,385 327,180 343,539 361,620 381,710 458,052 490,770 572,565 687,078 763,420 981,540 1,145,130 1,374,156 1,717,695 2,290,260 3,435,390 and 6,870,780, with no remainder.

Since 6,870,780 cannot be divided by just 1 and 6,870,780, 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).