The number 4,032,000 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 28 30 32 35 36 40 42 45 48 50 56 60 63 64 70 72 75 80 84 90 96 100 105 112 120 125 126 128 140 144 150 160 168 175 180 192 200 210 224 225 240 250 252 256 280 288 300 315 320 336 350 360 375 384 400 420 448 450 480 500 504 512 525 560 576 600 630 640 672 700 720 750 768 800 840 875 896 900 960 1,000 1,008 1,050 1,120 1,125 1,152 1,200 1,260 1,280 1,344 1,400 1,440 1,500 1,536 1,575 1,600 1,680 1,750 1,792 1,800 1,920 2,000 2,016 2,100 2,240 2,250 2,304 2,400 2,520 2,560 2,625 2,688 2,800 2,880 3,000 3,150 3,200 3,360 3,500 3,584 3,600 3,840 4,000 4,032 4,200 4,480 4,500 4,608 4,800 5,040 5,250 5,376 5,600 5,760 6,000 6,300 6,400 6,720 7,000 7,200 7,680 7,875 8,000 8,064 8,400 8,960 9,000 9,600 10,080 10,500 10,752 11,200 11,520 12,000 12,600 12,800 13,440 14,000 14,400 15,750 16,000 16,128 16,800 17,920 18,000 19,200 20,160 21,000 22,400 23,040 24,000 25,200 26,880 28,000 28,800 31,500 32,000 32,256 33,600 36,000 38,400 40,320 42,000 44,800 48,000 50,400 53,760 56,000 57,600 63,000 64,000 67,200 72,000 80,640 84,000 89,600 96,000 100,800 112,000 115,200 126,000 134,400 144,000 161,280 168,000 192,000 201,600 224,000 252,000 268,800 288,000 336,000 403,200 448,000 504,000 576,000 672,000 806,400 1,008,000 1,344,000 2,016,000 and 4,032,000, with no remainder.
Since 4,032,000 cannot be divided by just 1 and 4,032,000, it is a composite number.