Q: Is 660,660 a Composite Number?

Why is 660,660 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 660,660 can be evenly divided by 1 2 3 4 5 6 7 10 11 12 13 14 15 20 21 22 26 28 30 33 35 39 42 44 52 55 60 65 66 70 77 78 84 91 105 110 121 130 132 140 143 154 156 165 182 195 210 220 231 242 260 273 286 308 330 363 364 385 390 420 429 455 462 484 546 572 605 660 715 726 770 780 847 858 910 924 1,001 1,092 1,155 1,210 1,365 1,430 1,452 1,540 1,573 1,694 1,716 1,815 1,820 2,002 2,145 2,310 2,420 2,541 2,730 2,860 3,003 3,146 3,388 3,630 4,004 4,235 4,290 4,620 4,719 5,005 5,082 5,460 6,006 6,292 7,260 7,865 8,470 8,580 9,438 10,010 10,164 11,011 12,012 12,705 15,015 15,730 16,940 18,876 20,020 22,022 23,595 25,410 30,030 31,460 33,033 44,044 47,190 50,820 55,055 60,060 66,066 94,380 110,110 132,132 165,165 220,220 330,330 and 660,660, with no remainder.

Since 660,660 cannot be divided by just 1 and 660,660, 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).