Q: Is 7,128,320 a Composite Number?

Why is 7,128,320 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 7,128,320 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1,280 5,569 11,138 22,276 27,845 44,552 55,690 89,104 111,380 178,208 222,760 356,416 445,520 712,832 891,040 1,425,664 1,782,080 3,564,160 and 7,128,320, with no remainder.

Since 7,128,320 cannot be divided by just 1 and 7,128,320, 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).