Q: Is 180,180 a Composite Number?

Why is 180,180 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 180,180 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 99 105 110 117 126 130 132 140 143 154 156 165 180 182 195 198 210 220 231 234 252 260 273 286 308 315 330 364 385 390 396 420 429 455 462 468 495 546 572 585 630 660 693 715 770 780 819 858 910 924 990 1,001 1,092 1,155 1,170 1,260 1,287 1,365 1,386 1,430 1,540 1,638 1,716 1,820 1,980 2,002 2,145 2,310 2,340 2,574 2,730 2,772 2,860 3,003 3,276 3,465 4,004 4,095 4,290 4,620 5,005 5,148 5,460 6,006 6,435 6,930 8,190 8,580 9,009 10,010 12,012 12,870 13,860 15,015 16,380 18,018 20,020 25,740 30,030 36,036 45,045 60,060 90,090 and 180,180, with no remainder.

Since 180,180 cannot be divided by just 1 and 180,180, 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).