Q: Is 1,721,760 a Composite Number?

Why is 1,721,760 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 1,721,760 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 68 80 85 96 102 120 136 160 170 204 211 240 255 272 340 408 422 480 510 544 633 680 816 844 1,020 1,055 1,266 1,360 1,632 1,688 2,040 2,110 2,532 2,720 3,165 3,376 3,587 4,080 4,220 5,064 6,330 6,752 7,174 8,160 8,440 10,128 10,761 12,660 14,348 16,880 17,935 20,256 21,522 25,320 28,696 33,760 35,870 43,044 50,640 53,805 57,392 71,740 86,088 101,280 107,610 114,784 143,480 172,176 215,220 286,960 344,352 430,440 573,920 860,880 and 1,721,760, with no remainder.

Since 1,721,760 cannot be divided by just 1 and 1,721,760, 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).