The number 8,419,180 can be evenly divided by 1 2 4 5 7 10 11 14 20 22 28 35 44 49 55 70 71 77 98 110 121 140 142 154 196 220 242 245 284 308 355 385 484 490 497 539 605 710 770 781 847 980 994 1,078 1,210 1,420 1,540 1,562 1,694 1,988 2,156 2,420 2,485 2,695 3,124 3,388 3,479 3,905 4,235 4,970 5,390 5,467 5,929 6,958 7,810 8,470 8,591 9,940 10,780 10,934 11,858 13,916 15,620 16,940 17,182 17,395 21,868 23,716 27,335 29,645 34,364 34,790 38,269 42,955 54,670 59,290 60,137 69,580 76,538 85,910 109,340 118,580 120,274 153,076 171,820 191,345 240,548 300,685 382,690 420,959 601,370 765,380 841,918 1,202,740 1,683,836 2,104,795 4,209,590 and 8,419,180, with no remainder.
Since 8,419,180 cannot be divided by just 1 and 8,419,180, it is a composite number.