Q: Is 811,920 a Composite Number?

Why is 811,920 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 811,920 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 40 48 51 60 68 80 85 102 120 136 170 199 204 240 255 272 340 398 408 510 597 680 796 816 995 1,020 1,194 1,360 1,592 1,990 2,040 2,388 2,985 3,184 3,383 3,980 4,080 4,776 5,970 6,766 7,960 9,552 10,149 11,940 13,532 15,920 16,915 20,298 23,880 27,064 33,830 40,596 47,760 50,745 54,128 67,660 81,192 101,490 135,320 162,384 202,980 270,640 405,960 and 811,920, with no remainder.

Since 811,920 cannot be divided by just 1 and 811,920, 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).