Q: Is 30,821,680 a Composite Number?

Why is 30,821,680 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 30,821,680 can be evenly divided by 1 2 4 5 8 10 16 17 20 34 40 68 80 85 131 136 170 173 262 272 340 346 524 655 680 692 865 1,048 1,310 1,360 1,384 1,730 2,096 2,227 2,620 2,768 2,941 3,460 4,454 5,240 5,882 6,920 8,908 10,480 11,135 11,764 13,840 14,705 17,816 22,270 22,663 23,528 29,410 35,632 44,540 45,326 47,056 58,820 89,080 90,652 113,315 117,640 178,160 181,304 226,630 235,280 362,608 385,271 453,260 770,542 906,520 1,541,084 1,813,040 1,926,355 3,082,168 3,852,710 6,164,336 7,705,420 15,410,840 and 30,821,680, with no remainder.

Since 30,821,680 cannot be divided by just 1 and 30,821,680, 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).