Q: Is 1,981,980 a Composite Number?

Why is 1,981,980 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 1,981,980 can be evenly divided by 1 2 3 4 5 6 7 9 10 11 12 13 14 15 18 20 21 22 26 28 30 33 35 36 39 42 44 45 52 55 60 63 65 66 70 77 78 84 90 91 99 105 110 117 121 126 130 132 140 143 154 156 165 180 182 195 198 210 220 231 234 242 252 260 273 286 308 315 330 363 364 385 390 396 420 429 455 462 468 484 495 546 572 585 605 630 660 693 715 726 770 780 819 847 858 910 924 990 1,001 1,089 1,092 1,155 1,170 1,210 1,260 1,287 1,365 1,386 1,430 1,452 1,540 1,573 1,638 1,694 1,716 1,815 1,820 1,980 2,002 2,145 2,178 2,310 2,340 2,420 2,541 2,574 2,730 2,772 2,860 3,003 3,146 3,276 3,388 3,465 3,630 4,004 4,095 4,235 4,290 4,356 4,620 4,719 5,005 5,082 5,148 5,445 5,460 6,006 6,292 6,435 6,930 7,260 7,623 7,865 8,190 8,470 8,580 9,009 9,438 10,010 10,164 10,890 11,011 12,012 12,705 12,870 13,860 14,157 15,015 15,246 15,730 16,380 16,940 18,018 18,876 20,020 21,780 22,022 23,595 25,410 25,740 28,314 30,030 30,492 31,460 33,033 36,036 38,115 44,044 45,045 47,190 50,820 55,055 56,628 60,060 66,066 70,785 76,230 90,090 94,380 99,099 110,110 132,132 141,570 152,460 165,165 180,180 198,198 220,220 283,140 330,330 396,396 495,495 660,660 990,990 and 1,981,980, with no remainder.

Since 1,981,980 cannot be divided by just 1 and 1,981,980, 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).