Q: Is 21,133,266 a Composite Number?

Why is 21,133,266 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 21,133,266 can be evenly divided by 1 2 3 6 7 11 14 21 22 33 42 66 77 149 154 231 298 307 447 462 614 894 921 1,043 1,639 1,842 2,086 2,149 3,129 3,278 3,377 4,298 4,917 6,258 6,447 6,754 9,834 10,131 11,473 12,894 20,262 22,946 23,639 34,419 45,743 47,278 68,838 70,917 91,486 137,229 141,834 274,458 320,201 503,173 640,402 960,603 1,006,346 1,509,519 1,921,206 3,019,038 3,522,211 7,044,422 10,566,633 and 21,133,266, with no remainder.

Since 21,133,266 cannot be divided by just 1 and 21,133,266, 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).