Q: Is 21,001,266 a Composite Number?

Why is 21,001,266 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 21,001,266 can be evenly divided by 1 2 3 6 9 11 13 18 22 26 33 39 41 66 78 82 99 117 123 143 198 199 234 246 286 369 398 429 451 533 597 738 858 902 1,066 1,194 1,287 1,353 1,599 1,791 2,189 2,574 2,587 2,706 3,198 3,582 4,059 4,378 4,797 5,174 5,863 6,567 7,761 8,118 8,159 9,594 11,726 13,134 15,522 16,318 17,589 19,701 23,283 24,477 28,457 35,178 39,402 46,566 48,954 52,767 56,914 73,431 85,371 89,749 105,534 106,067 146,862 170,742 179,498 212,134 256,113 269,247 318,201 512,226 538,494 636,402 807,741 954,603 1,166,737 1,615,482 1,909,206 2,333,474 3,500,211 7,000,422 10,500,633 and 21,001,266, with no remainder.

Since 21,001,266 cannot be divided by just 1 and 21,001,266, 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).