Q: Is 21,402,524 a Composite Number?

Why is 21,402,524 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 21,402,524 can be evenly divided by 1 2 4 11 13 17 22 26 31 34 44 52 62 68 71 124 142 143 187 221 284 286 341 374 403 442 527 572 682 748 781 806 884 923 1,054 1,207 1,364 1,562 1,612 1,846 2,108 2,201 2,414 2,431 3,124 3,692 4,402 4,433 4,828 4,862 5,797 6,851 8,804 8,866 9,724 10,153 11,594 13,277 13,702 15,691 17,732 20,306 23,188 24,211 26,554 27,404 28,613 31,382 37,417 40,612 48,422 53,108 57,226 62,764 74,834 75,361 96,844 114,452 149,668 150,722 172,601 301,444 314,743 345,202 411,587 486,421 629,486 690,404 823,174 972,842 1,258,972 1,646,348 1,945,684 5,350,631 10,701,262 and 21,402,524, with no remainder.

Since 21,402,524 cannot be divided by just 1 and 21,402,524, 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).