Q: Is 7,121,800 a Composite Number?

Why is 7,121,800 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 7,121,800 can be evenly divided by 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 140 175 200 280 350 700 1,400 5,087 10,174 20,348 25,435 35,609 40,696 50,870 71,218 101,740 127,175 142,436 178,045 203,480 254,350 284,872 356,090 508,700 712,180 890,225 1,017,400 1,424,360 1,780,450 3,560,900 and 7,121,800, with no remainder.

Since 7,121,800 cannot be divided by just 1 and 7,121,800, 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).