Q: Is 1,311,500 a Composite Number?

Why is 1,311,500 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 1,311,500 can be evenly divided by 1 2 4 5 10 20 25 43 50 61 86 100 122 125 172 215 244 250 305 430 500 610 860 1,075 1,220 1,525 2,150 2,623 3,050 4,300 5,246 5,375 6,100 7,625 10,492 10,750 13,115 15,250 21,500 26,230 30,500 52,460 65,575 131,150 262,300 327,875 655,750 and 1,311,500, with no remainder.

Since 1,311,500 cannot be divided by just 1 and 1,311,500, 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).