The number 2,669,940 can be evenly divided by 1 2 3 4 5 6 7 9 10 12 13 14 15 18 20 21 26 28 30 35 36 39 42 45 52 60 63 65 70 78 84 90 91 105 117 126 130 140 156 163 180 182 195 210 234 252 260 273 315 326 364 390 420 455 468 489 546 585 630 652 780 815 819 910 978 1,092 1,141 1,170 1,260 1,365 1,467 1,630 1,638 1,820 1,956 2,119 2,282 2,340 2,445 2,730 2,934 3,260 3,276 3,423 4,095 4,238 4,564 4,890 5,460 5,705 5,868 6,357 6,846 7,335 8,190 8,476 9,780 10,269 10,595 11,410 12,714 13,692 14,670 14,833 16,380 17,115 19,071 20,538 21,190 22,820 25,428 29,340 29,666 31,785 34,230 38,142 41,076 42,380 44,499 51,345 59,332 63,570 68,460 74,165 76,284 88,998 95,355 102,690 127,140 133,497 148,330 177,996 190,710 205,380 222,495 266,994 296,660 381,420 444,990 533,988 667,485 889,980 1,334,970 and 2,669,940, with no remainder.
Since 2,669,940 cannot be divided by just 1 and 2,669,940, it is a composite number.