Q: Is 16,611,660 a Composite Number?

Why is 16,611,660 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 16,611,660 can be evenly divided by 1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 31 36 39 45 52 60 62 65 78 90 93 117 124 130 155 156 180 186 195 229 234 260 279 310 372 390 403 458 465 468 558 585 620 687 780 806 916 930 1,116 1,145 1,170 1,209 1,374 1,395 1,612 1,860 2,015 2,061 2,290 2,340 2,418 2,748 2,790 2,977 3,435 3,627 4,030 4,122 4,580 4,836 5,580 5,954 6,045 6,870 7,099 7,254 8,060 8,244 8,931 10,305 11,908 12,090 13,740 14,198 14,508 14,885 17,862 18,135 20,610 21,297 24,180 26,793 28,396 29,770 35,495 35,724 36,270 41,220 42,594 44,655 53,586 59,540 63,891 70,990 72,540 85,188 89,310 92,287 106,485 107,172 127,782 133,965 141,980 178,620 184,574 212,970 255,564 267,930 276,861 319,455 369,148 425,940 461,435 535,860 553,722 638,910 830,583 922,870 1,107,444 1,277,820 1,384,305 1,661,166 1,845,740 2,768,610 3,322,332 4,152,915 5,537,220 8,305,830 and 16,611,660, with no remainder.

Since 16,611,660 cannot be divided by just 1 and 16,611,660, 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).