Q: Is 21,331,200 a Composite Number?

Why is 21,331,200 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 21,331,200 can be evenly divided by 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 25 30 32 33 40 44 48 50 55 60 64 66 75 80 88 96 100 101 110 120 128 132 150 160 165 176 192 200 202 220 240 256 264 275 300 303 320 330 352 384 400 404 440 480 505 528 550 600 606 640 660 704 768 800 808 825 880 960 1,010 1,056 1,100 1,111 1,200 1,212 1,280 1,320 1,408 1,515 1,600 1,616 1,650 1,760 1,920 2,020 2,112 2,200 2,222 2,400 2,424 2,525 2,640 2,816 3,030 3,200 3,232 3,300 3,333 3,520 3,840 4,040 4,224 4,400 4,444 4,800 4,848 5,050 5,280 5,555 6,060 6,400 6,464 6,600 6,666 7,040 7,575 8,080 8,448 8,800 8,888 9,600 9,696 10,100 10,560 11,110 12,120 12,928 13,200 13,332 14,080 15,150 16,160 16,665 17,600 17,776 19,200 19,392 20,200 21,120 22,220 24,240 25,856 26,400 26,664 27,775 30,300 32,320 33,330 35,200 35,552 38,784 40,400 42,240 44,440 48,480 52,800 53,328 55,550 60,600 64,640 66,660 70,400 71,104 77,568 80,800 83,325 88,880 96,960 105,600 106,656 111,100 121,200 129,280 133,320 142,208 161,600 166,650 177,760 193,920 211,200 213,312 222,200 242,400 266,640 284,416 323,200 333,300 355,520 387,840 426,624 444,400 484,800 533,280 646,400 666,600 711,040 853,248 888,800 969,600 1,066,560 1,333,200 1,422,080 1,777,600 1,939,200 2,133,120 2,666,400 3,555,200 4,266,240 5,332,800 7,110,400 10,665,600 and 21,331,200, with no remainder.

Since 21,331,200 cannot be divided by just 1 and 21,331,200, 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).