Q: Is 19,445,790 a Composite Number?

Why is 19,445,790 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 19,445,790 can be evenly divided by 1 2 3 5 6 7 10 13 14 15 17 21 26 30 34 35 39 42 51 65 70 78 85 91 102 105 119 130 170 182 195 210 221 238 255 273 357 390 419 442 455 510 546 595 663 714 838 910 1,105 1,190 1,257 1,326 1,365 1,547 1,785 2,095 2,210 2,514 2,730 2,933 3,094 3,315 3,570 4,190 4,641 5,447 5,866 6,285 6,630 7,123 7,735 8,799 9,282 10,894 12,570 14,246 14,665 15,470 16,341 17,598 21,369 23,205 27,235 29,330 32,682 35,615 38,129 42,738 43,995 46,410 49,861 54,470 71,230 76,258 81,705 87,990 92,599 99,722 106,845 114,387 149,583 163,410 185,198 190,645 213,690 228,774 249,305 277,797 299,166 381,290 462,995 498,610 555,594 571,935 648,193 747,915 925,990 1,143,870 1,296,386 1,388,985 1,495,830 1,944,579 2,777,970 3,240,965 3,889,158 6,481,930 9,722,895 and 19,445,790, with no remainder.

Since 19,445,790 cannot be divided by just 1 and 19,445,790, 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).