Q: Is 8,221,120 a Composite Number?

Why is 8,221,120 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 8,221,120 can be evenly divided by 1 2 4 5 8 10 16 20 23 32 40 46 64 80 92 115 160 184 230 320 368 460 736 920 1,117 1,472 1,840 2,234 3,680 4,468 5,585 7,360 8,936 11,170 17,872 22,340 25,691 35,744 44,680 51,382 71,488 89,360 102,764 128,455 178,720 205,528 256,910 357,440 411,056 513,820 822,112 1,027,640 1,644,224 2,055,280 4,110,560 and 8,221,120, with no remainder.

Since 8,221,120 cannot be divided by just 1 and 8,221,120, 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).