Q: Is 20,040,720 a Composite Number?

Why is 20,040,720 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 20,040,720 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 79 80 84 105 112 120 140 151 158 168 210 237 240 280 302 316 336 395 420 453 474 553 560 604 632 755 790 840 906 948 1,057 1,106 1,185 1,208 1,264 1,510 1,580 1,659 1,680 1,812 1,896 2,114 2,212 2,265 2,370 2,416 2,765 3,020 3,160 3,171 3,318 3,624 3,792 4,228 4,424 4,530 4,740 5,285 5,530 6,040 6,320 6,342 6,636 7,248 8,295 8,456 8,848 9,060 9,480 10,570 11,060 11,929 12,080 12,684 13,272 15,855 16,590 16,912 18,120 18,960 21,140 22,120 23,858 25,368 26,544 31,710 33,180 35,787 36,240 42,280 44,240 47,716 50,736 59,645 63,420 66,360 71,574 83,503 84,560 95,432 119,290 126,840 132,720 143,148 167,006 178,935 190,864 238,580 250,509 253,680 286,296 334,012 357,870 417,515 477,160 501,018 572,592 668,024 715,740 835,030 954,320 1,002,036 1,252,545 1,336,048 1,431,480 1,670,060 2,004,072 2,505,090 2,862,960 3,340,120 4,008,144 5,010,180 6,680,240 10,020,360 and 20,040,720, with no remainder.

Since 20,040,720 cannot be divided by just 1 and 20,040,720, 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).