Q: Is 31,555,440 a Composite Number?

Why is 31,555,440 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 31,555,440 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 30 35 36 40 42 45 48 54 56 60 63 70 72 80 84 90 105 108 112 120 126 135 140 144 168 180 189 210 216 240 252 270 280 315 336 360 378 420 432 504 540 560 630 720 756 840 945 1,008 1,080 1,260 1,512 1,680 1,890 2,087 2,160 2,520 3,024 3,780 4,174 5,040 6,261 7,560 8,348 10,435 12,522 14,609 15,120 16,696 18,783 20,870 25,044 29,218 31,305 33,392 37,566 41,740 43,827 50,088 56,349 58,436 62,610 73,045 75,132 83,480 87,654 93,915 100,176 112,698 116,872 125,220 131,481 146,090 150,264 166,960 175,308 187,830 219,135 225,396 233,744 250,440 262,962 281,745 292,180 300,528 350,616 375,660 394,443 438,270 450,792 500,880 525,924 563,490 584,360 657,405 701,232 751,320 788,886 876,540 901,584 1,051,848 1,126,980 1,168,720 1,314,810 1,502,640 1,577,772 1,753,080 1,972,215 2,103,696 2,253,960 2,629,620 3,155,544 3,506,160 3,944,430 4,507,920 5,259,240 6,311,088 7,888,860 10,518,480 15,777,720 and 31,555,440, with no remainder.

Since 31,555,440 cannot be divided by just 1 and 31,555,440, 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).