Q: Is 55,555,500 a Composite Number?

Why is 55,555,500 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 55,555,500 can be evenly divided by 1 2 3 4 5 6 7 10 11 12 13 14 15 20 21 22 25 26 28 30 33 35 37 39 42 44 50 52 55 60 65 66 70 74 75 77 78 84 91 100 105 110 111 125 130 132 140 143 148 150 154 156 165 175 182 185 195 210 220 222 231 250 259 260 273 275 286 300 308 325 330 350 364 370 375 385 390 407 420 429 444 455 462 481 500 518 525 546 550 555 572 650 660 700 715 740 750 770 777 780 814 825 858 875 910 924 925 962 975 1,001 1,036 1,050 1,092 1,100 1,110 1,155 1,221 1,295 1,300 1,365 1,375 1,430 1,443 1,500 1,540 1,554 1,625 1,628 1,650 1,716 1,750 1,820 1,850 1,924 1,925 1,950 2,002 2,035 2,100 2,145 2,220 2,275 2,310 2,405 2,442 2,590 2,625 2,730 2,750 2,775 2,849 2,860 2,886 3,003 3,108 3,250 3,300 3,367 3,500 3,575 3,700 3,850 3,885 3,900 4,004 4,070 4,125 4,290 4,550 4,620 4,625 4,810 4,875 4,884 5,005 5,180 5,250 5,291 5,460 5,500 5,550 5,698 5,772 5,775 6,006 6,105 6,475 6,500 6,734 6,825 7,150 7,215 7,700 7,770 8,140 8,250 8,547 8,580 9,100 9,250 9,620 9,625 9,750 10,010 10,101 10,175 10,500 10,582 10,725 11,100 11,375 11,396 11,550 12,012 12,025 12,210 12,950 13,468 13,650 13,875 14,245 14,300 14,430 15,015 15,540 15,873 16,500 16,835 17,094 17,875 18,500 19,250 19,425 19,500 20,020 20,202 20,350 21,164 21,450 22,750 23,100 24,050 24,420 25,025 25,900 26,455 27,300 27,750 28,490 28,860 28,875 30,030 30,525 31,746 32,375 33,670 34,125 34,188 35,750 36,075 37,037 38,500 38,850 40,404 40,700 42,735 42,900 45,500 48,100 50,050 50,505 50,875 52,910 53,625 55,500 56,980 57,750 60,060 60,125 61,050 63,492 64,750 67,340 68,250 71,225 71,500 72,150 74,074 75,075 77,700 79,365 84,175 85,470 97,125 100,100 101,010 101,750 105,820 107,250 111,111 115,500 120,250 122,100 125,125 129,500 132,275 136,500 142,450 144,300 148,148 150,150 152,625 158,730 168,350 170,940 180,375 185,185 194,250 202,020 203,500 213,675 214,500 222,222 240,500 250,250 252,525 264,550 284,900 300,300 305,250 317,460 336,700 356,125 360,750 370,370 375,375 388,500 396,825 420,875 427,350 444,444 500,500 505,050 529,100 555,555 610,500 661,375 712,250 721,500 740,740 750,750 793,650 841,750 854,700 925,925 1,010,100 1,068,375 1,111,110 1,262,625 1,322,750 1,424,500 1,501,500 1,587,300 1,683,500 1,851,850 1,984,125 2,136,750 2,222,220 2,525,250 2,645,500 2,777,775 3,703,700 3,968,250 4,273,500 4,629,625 5,050,500 5,555,550 7,936,500 9,259,250 11,111,100 13,888,875 18,518,500 27,777,750 and 55,555,500, with no remainder.

Since 55,555,500 cannot be divided by just 1 and 55,555,500, 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).