The number 3,007,200 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 30 32 35 40 42 48 50 56 60 70 75 80 84 96 100 105 112 120 140 150 160 168 175 179 200 210 224 240 280 300 336 350 358 400 420 480 525 537 560 600 672 700 716 800 840 895 1,050 1,074 1,120 1,200 1,253 1,400 1,432 1,680 1,790 2,100 2,148 2,400 2,506 2,685 2,800 2,864 3,360 3,580 3,759 4,200 4,296 4,475 5,012 5,370 5,600 5,728 6,265 7,160 7,518 8,400 8,592 8,950 10,024 10,740 12,530 13,425 14,320 15,036 16,800 17,184 17,900 18,795 20,048 21,480 25,060 26,850 28,640 30,072 31,325 35,800 37,590 40,096 42,960 50,120 53,700 60,144 62,650 71,600 75,180 85,920 93,975 100,240 107,400 120,288 125,300 143,200 150,360 187,950 200,480 214,800 250,600 300,720 375,900 429,600 501,200 601,440 751,800 1,002,400 1,503,600 and 3,007,200, with no remainder.
Since 3,007,200 cannot be divided by just 1 and 3,007,200, it is a composite number.