The number 6,904,170 can be evenly divided by 1 2 3 5 6 7 9 10 13 14 15 18 21 26 27 30 35 39 42 45 54 63 65 70 78 90 91 105 117 126 130 135 182 189 195 210 234 270 273 281 315 351 378 390 455 546 562 585 630 702 819 843 910 945 1,170 1,365 1,405 1,638 1,686 1,755 1,890 1,967 2,457 2,529 2,730 2,810 3,510 3,653 3,934 4,095 4,215 4,914 5,058 5,901 7,306 7,587 8,190 8,430 9,835 10,959 11,802 12,285 12,645 15,174 17,703 18,265 19,670 21,918 24,570 25,290 25,571 29,505 32,877 35,406 36,530 37,935 51,142 53,109 54,795 59,010 65,754 75,870 76,713 88,515 98,631 106,218 109,590 127,855 153,426 164,385 177,030 197,262 230,139 255,710 265,545 328,770 383,565 460,278 493,155 531,090 690,417 767,130 986,310 1,150,695 1,380,834 2,301,390 3,452,085 and 6,904,170, with no remainder.
Since 6,904,170 cannot be divided by just 1 and 6,904,170, it is a composite number.