Q: Is 81,600 a Composite Number?

Why is 81,600 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 81,600 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 17 20 24 25 30 32 34 40 48 50 51 60 64 68 75 80 85 96 100 102 120 136 150 160 170 192 200 204 240 255 272 300 320 340 400 408 425 480 510 544 600 680 800 816 850 960 1,020 1,088 1,200 1,275 1,360 1,600 1,632 1,700 2,040 2,400 2,550 2,720 3,264 3,400 4,080 4,800 5,100 5,440 6,800 8,160 10,200 13,600 16,320 20,400 27,200 40,800 and 81,600, with no remainder.

Since 81,600 cannot be divided by just 1 and 81,600, 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).