The number 1,125,600 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 67 70 75 80 84 96 100 105 112 120 134 140 150 160 168 175 200 201 210 224 240 268 280 300 335 336 350 400 402 420 469 480 525 536 560 600 670 672 700 800 804 840 938 1,005 1,050 1,072 1,120 1,200 1,340 1,400 1,407 1,608 1,675 1,680 1,876 2,010 2,100 2,144 2,345 2,400 2,680 2,800 2,814 3,216 3,350 3,360 3,752 4,020 4,200 4,690 5,025 5,360 5,600 5,628 6,432 6,700 7,035 7,504 8,040 8,400 9,380 10,050 10,720 11,256 11,725 13,400 14,070 15,008 16,080 16,800 18,760 20,100 22,512 23,450 26,800 28,140 32,160 35,175 37,520 40,200 45,024 46,900 53,600 56,280 70,350 75,040 80,400 93,800 112,560 140,700 160,800 187,600 225,120 281,400 375,200 562,800 and 1,125,600, with no remainder.
Since 1,125,600 cannot be divided by just 1 and 1,125,600, it is a composite number.