The number 6,622,200 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 25 26 30 36 39 40 45 50 52 60 65 72 75 78 90 100 104 117 120 130 150 156 180 195 200 225 234 260 283 300 312 325 360 390 450 468 520 566 585 600 650 780 849 900 936 975 1,132 1,170 1,300 1,415 1,560 1,698 1,800 1,950 2,264 2,340 2,547 2,600 2,830 2,925 3,396 3,679 3,900 4,245 4,680 5,094 5,660 5,850 6,792 7,075 7,358 7,800 8,490 10,188 11,037 11,320 11,700 12,735 14,150 14,716 16,980 18,395 20,376 21,225 22,074 23,400 25,470 28,300 29,432 33,111 33,960 36,790 42,450 44,148 50,940 55,185 56,600 63,675 66,222 73,580 84,900 88,296 91,975 101,880 110,370 127,350 132,444 147,160 165,555 169,800 183,950 220,740 254,700 264,888 275,925 331,110 367,900 441,480 509,400 551,850 662,220 735,800 827,775 1,103,700 1,324,440 1,655,550 2,207,400 3,311,100 and 6,622,200, with no remainder.
Since 6,622,200 cannot be divided by just 1 and 6,622,200, it is a composite number.