Q: Is 31,131,000 a Composite Number?

Why is 31,131,000 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 31,131,000 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 27 30 36 40 45 50 54 60 72 75 90 100 108 120 125 135 150 180 200 216 225 250 270 300 360 375 450 500 540 600 675 750 900 1,000 1,080 1,125 1,153 1,350 1,500 1,800 2,250 2,306 2,700 3,000 3,375 3,459 4,500 4,612 5,400 5,765 6,750 6,918 9,000 9,224 10,377 11,530 13,500 13,836 17,295 20,754 23,060 27,000 27,672 28,825 31,131 34,590 41,508 46,120 51,885 57,650 62,262 69,180 83,016 86,475 103,770 115,300 124,524 138,360 144,125 155,655 172,950 207,540 230,600 249,048 259,425 288,250 311,310 345,900 415,080 432,375 518,850 576,500 622,620 691,800 778,275 864,750 1,037,700 1,153,000 1,245,240 1,297,125 1,556,550 1,729,500 2,075,400 2,594,250 3,113,100 3,459,000 3,891,375 5,188,500 6,226,200 7,782,750 10,377,000 15,565,500 and 31,131,000, with no remainder.

Since 31,131,000 cannot be divided by just 1 and 31,131,000, 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).