The number 5,665,140 can be evenly divided by 1 2 3 4 5 6 9 10 12 13 15 18 20 26 27 30 36 39 45 52 54 60 65 78 81 90 108 117 130 135 156 162 180 195 234 260 269 270 324 351 390 405 468 538 540 585 702 780 807 810 1,053 1,076 1,170 1,345 1,404 1,614 1,620 1,755 2,106 2,340 2,421 2,690 3,228 3,497 3,510 4,035 4,212 4,842 5,265 5,380 6,994 7,020 7,263 8,070 9,684 10,491 10,530 12,105 13,988 14,526 16,140 17,485 20,982 21,060 21,789 24,210 29,052 31,473 34,970 36,315 41,964 43,578 48,420 52,455 62,946 69,940 72,630 87,156 94,419 104,910 108,945 125,892 145,260 157,365 188,838 209,820 217,890 283,257 314,730 377,676 435,780 472,095 566,514 629,460 944,190 1,133,028 1,416,285 1,888,380 2,832,570 and 5,665,140, with no remainder.
Since 5,665,140 cannot be divided by just 1 and 5,665,140, it is a composite number.