Q: Is 21,053,010 a Composite Number?

Why is 21,053,010 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 21,053,010 can be evenly divided by 1 2 3 5 6 10 11 15 22 30 33 55 66 110 131 165 262 330 393 487 655 786 974 1,310 1,441 1,461 1,965 2,435 2,882 2,922 3,930 4,323 4,870 5,357 7,205 7,305 8,646 10,714 14,410 14,610 16,071 21,615 26,785 32,142 43,230 53,570 63,797 80,355 127,594 160,710 191,391 318,985 382,782 637,970 701,767 956,955 1,403,534 1,913,910 2,105,301 3,508,835 4,210,602 7,017,670 10,526,505 and 21,053,010, with no remainder.

Since 21,053,010 cannot be divided by just 1 and 21,053,010, 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).