Q: Is 2,121,570 a Composite Number?

Why is 2,121,570 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 2,121,570 can be evenly divided by 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 165 198 330 495 990 2,143 4,286 6,429 10,715 12,858 19,287 21,430 23,573 32,145 38,574 47,146 64,290 70,719 96,435 117,865 141,438 192,870 212,157 235,730 353,595 424,314 707,190 1,060,785 and 2,121,570, with no remainder.

Since 2,121,570 cannot be divided by just 1 and 2,121,570, 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).