Q: Is 21,784,488 a Composite Number?

Why is 21,784,488 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 21,784,488 can be evenly divided by 1 2 3 4 6 8 11 12 19 22 24 33 38 43 44 57 66 76 86 88 101 114 129 132 152 172 202 209 228 258 264 303 344 404 418 456 473 516 606 627 808 817 836 946 1,032 1,111 1,212 1,254 1,419 1,634 1,672 1,892 1,919 2,222 2,424 2,451 2,508 2,838 3,268 3,333 3,784 3,838 4,343 4,444 4,902 5,016 5,676 5,757 6,536 6,666 7,676 8,686 8,888 8,987 9,804 11,352 11,514 13,029 13,332 15,352 17,372 17,974 19,608 21,109 23,028 26,058 26,664 26,961 34,744 35,948 42,218 46,056 47,773 52,116 53,922 63,327 71,896 82,517 84,436 95,546 104,232 107,844 126,654 143,319 165,034 168,872 191,092 215,688 247,551 253,308 286,638 330,068 382,184 495,102 506,616 573,276 660,136 907,687 990,204 1,146,552 1,815,374 1,980,408 2,723,061 3,630,748 5,446,122 7,261,496 10,892,244 and 21,784,488, with no remainder.

Since 21,784,488 cannot be divided by just 1 and 21,784,488, 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).