Q: Is 5,555,550 a Composite Number?

Why is 5,555,550 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 5,555,550 can be evenly divided by 1 2 3 5 6 7 10 11 13 14 15 21 22 25 26 30 33 35 37 39 42 50 55 65 66 70 74 75 77 78 91 105 110 111 130 143 150 154 165 175 182 185 195 210 222 231 259 273 275 286 325 330 350 370 385 390 407 429 455 462 481 518 525 546 550 555 650 715 770 777 814 825 858 910 925 962 975 1,001 1,050 1,110 1,155 1,221 1,295 1,365 1,430 1,443 1,554 1,650 1,850 1,925 1,950 2,002 2,035 2,145 2,275 2,310 2,405 2,442 2,590 2,730 2,775 2,849 2,886 3,003 3,367 3,575 3,850 3,885 4,070 4,290 4,550 4,810 5,005 5,291 5,550 5,698 5,775 6,006 6,105 6,475 6,734 6,825 7,150 7,215 7,770 8,547 10,010 10,101 10,175 10,582 10,725 11,550 12,025 12,210 12,950 13,650 14,245 14,430 15,015 15,873 16,835 17,094 19,425 20,202 20,350 21,450 24,050 25,025 26,455 28,490 30,030 30,525 31,746 33,670 36,075 37,037 38,850 42,735 50,050 50,505 52,910 61,050 71,225 72,150 74,074 75,075 79,365 84,175 85,470 101,010 111,111 132,275 142,450 150,150 158,730 168,350 185,185 213,675 222,222 252,525 264,550 370,370 396,825 427,350 505,050 555,555 793,650 925,925 1,111,110 1,851,850 2,777,775 and 5,555,550, with no remainder.

Since 5,555,550 cannot be divided by just 1 and 5,555,550, 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).