Q: Is 2,211,105 a Composite Number?

Why is 2,211,105 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 2,211,105 can be evenly divided by 1 3 5 13 15 17 23 29 39 51 65 69 85 87 115 145 195 221 255 299 345 377 391 435 493 663 667 897 1,105 1,131 1,173 1,479 1,495 1,885 1,955 2,001 2,465 3,315 3,335 4,485 5,083 5,655 5,865 6,409 7,395 8,671 10,005 11,339 15,249 19,227 25,415 26,013 32,045 34,017 43,355 56,695 76,245 96,135 130,065 147,407 170,085 442,221 737,035 and 2,211,105, with no remainder.

Since 2,211,105 cannot be divided by just 1 and 2,211,105, 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).