The number 2,734,800 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 43 48 50 53 60 75 80 86 100 106 120 129 150 159 172 200 212 215 240 258 265 300 318 344 400 424 430 516 530 600 636 645 688 795 848 860 1,032 1,060 1,075 1,200 1,272 1,290 1,325 1,590 1,720 2,064 2,120 2,150 2,279 2,544 2,580 2,650 3,180 3,225 3,440 3,975 4,240 4,300 4,558 5,160 5,300 6,360 6,450 6,837 7,950 8,600 9,116 10,320 10,600 11,395 12,720 12,900 13,674 15,900 17,200 18,232 21,200 22,790 25,800 27,348 31,800 34,185 36,464 45,580 51,600 54,696 56,975 63,600 68,370 91,160 109,392 113,950 136,740 170,925 182,320 227,900 273,480 341,850 455,800 546,960 683,700 911,600 1,367,400 and 2,734,800, with no remainder.
Since 2,734,800 cannot be divided by just 1 and 2,734,800, it is a composite number.