Q: Is 981,540 a Composite Number?

Why is 981,540 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 981,540 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 57 60 63 70 76 82 84 90 95 105 114 123 126 133 140 164 171 180 190 205 210 228 246 252 266 285 287 315 342 369 380 399 410 420 492 532 570 574 615 630 665 684 738 779 798 820 855 861 1,140 1,148 1,197 1,230 1,260 1,330 1,435 1,476 1,558 1,596 1,710 1,722 1,845 1,995 2,337 2,394 2,460 2,583 2,660 2,870 3,116 3,420 3,444 3,690 3,895 3,990 4,305 4,674 4,788 5,166 5,453 5,740 5,985 7,011 7,380 7,790 7,980 8,610 9,348 10,332 10,906 11,685 11,970 12,915 14,022 15,580 16,359 17,220 21,812 23,370 23,940 25,830 27,265 28,044 32,718 35,055 46,740 49,077 51,660 54,530 65,436 70,110 81,795 98,154 109,060 140,220 163,590 196,308 245,385 327,180 490,770 and 981,540, with no remainder.

Since 981,540 cannot be divided by just 1 and 981,540, 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).