Q: Is 18,012,800 a Composite Number?

Why is 18,012,800 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 18,012,800 can be evenly divided by 1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 128 130 160 200 208 260 320 325 400 416 433 520 640 650 800 832 866 1,040 1,300 1,600 1,664 1,732 2,080 2,165 2,600 3,200 3,464 4,160 4,330 5,200 5,629 6,928 8,320 8,660 10,400 10,825 11,258 13,856 17,320 20,800 21,650 22,516 27,712 28,145 34,640 41,600 43,300 45,032 55,424 56,290 69,280 86,600 90,064 112,580 138,560 140,725 173,200 180,128 225,160 277,120 281,450 346,400 360,256 450,320 562,900 692,800 720,512 900,640 1,125,800 1,385,600 1,801,280 2,251,600 3,602,560 4,503,200 9,006,400 and 18,012,800, with no remainder.

Since 18,012,800 cannot be divided by just 1 and 18,012,800, 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).