Q: Is 1,215,396 a Composite Number?

Why is 1,215,396 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 1,215,396 can be evenly divided by 1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 49 52 53 63 78 84 91 98 106 117 126 147 156 159 182 196 212 234 252 273 294 318 364 371 441 468 477 546 588 636 637 689 742 819 882 954 1,092 1,113 1,274 1,378 1,484 1,638 1,764 1,908 1,911 2,067 2,226 2,548 2,597 2,756 3,276 3,339 3,822 4,134 4,452 4,823 5,194 5,733 6,201 6,678 7,644 7,791 8,268 9,646 10,388 11,466 12,402 13,356 14,469 15,582 19,292 22,932 23,373 24,804 28,938 31,164 33,761 43,407 46,746 57,876 67,522 86,814 93,492 101,283 135,044 173,628 202,566 303,849 405,132 607,698 and 1,215,396, with no remainder.

Since 1,215,396 cannot be divided by just 1 and 1,215,396, 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).