The number 1,533,600 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 30 32 36 40 45 48 50 54 60 71 72 75 80 90 96 100 108 120 135 142 144 150 160 180 200 213 216 225 240 270 284 288 300 355 360 400 426 432 450 480 540 568 600 639 675 710 720 800 852 864 900 1,065 1,080 1,136 1,200 1,278 1,350 1,420 1,440 1,704 1,775 1,800 1,917 2,130 2,160 2,272 2,400 2,556 2,700 2,840 3,195 3,408 3,550 3,600 3,834 4,260 4,320 5,112 5,325 5,400 5,680 6,390 6,816 7,100 7,200 7,668 8,520 9,585 10,224 10,650 10,800 11,360 12,780 14,200 15,336 15,975 17,040 19,170 20,448 21,300 21,600 25,560 28,400 30,672 31,950 34,080 38,340 42,600 47,925 51,120 56,800 61,344 63,900 76,680 85,200 95,850 102,240 127,800 153,360 170,400 191,700 255,600 306,720 383,400 511,200 766,800 and 1,533,600, with no remainder.
Since 1,533,600 cannot be divided by just 1 and 1,533,600, it is a composite number.