Q: Is 728,161,680 a Composite Number?

Why is 728,161,680 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 728,161,680 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 40 48 51 60 68 80 85 102 120 136 170 204 240 255 272 317 340 408 510 563 634 680 816 951 1,020 1,126 1,268 1,360 1,585 1,689 1,902 2,040 2,252 2,536 2,815 3,170 3,378 3,804 4,080 4,504 4,755 5,072 5,389 5,630 6,340 6,756 7,608 8,445 9,008 9,510 9,571 10,778 11,260 12,680 13,512 15,216 16,167 16,890 19,020 19,142 21,556 22,520 25,360 26,945 27,024 28,713 32,334 33,780 38,040 38,284 43,112 45,040 47,855 53,890 57,426 64,668 67,560 76,080 76,568 80,835 86,224 95,710 107,780 114,852 129,336 135,120 143,565 153,136 161,670 178,471 191,420 215,560 229,704 258,672 287,130 323,340 356,942 382,840 431,120 459,408 535,413 574,260 646,680 713,884 765,680 892,355 1,070,826 1,148,520 1,293,360 1,427,768 1,784,710 2,141,652 2,297,040 2,677,065 2,855,536 3,034,007 3,569,420 4,283,304 5,354,130 6,068,014 7,138,840 8,566,608 9,102,021 10,708,260 12,136,028 14,277,680 15,170,035 18,204,042 21,416,520 24,272,056 30,340,070 36,408,084 42,833,040 45,510,105 48,544,112 60,680,140 72,816,168 91,020,210 121,360,280 145,632,336 182,040,420 242,720,560 364,080,840 and 728,161,680, with no remainder.

Since 728,161,680 cannot be divided by just 1 and 728,161,680, 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).