The number 7,385,400 can be evenly divided by 1 2 3 4 5 6 8 9 10 11 12 15 18 20 22 24 25 30 33 36 40 44 45 50 55 60 66 72 75 88 90 99 100 110 120 132 150 165 180 198 200 220 225 264 275 300 330 360 373 396 440 450 495 550 600 660 746 792 825 900 990 1,100 1,119 1,320 1,492 1,650 1,800 1,865 1,980 2,200 2,238 2,475 2,984 3,300 3,357 3,730 3,960 4,103 4,476 4,950 5,595 6,600 6,714 7,460 8,206 8,952 9,325 9,900 11,190 12,309 13,428 14,920 16,412 16,785 18,650 19,800 20,515 22,380 24,618 26,856 27,975 32,824 33,570 36,927 37,300 41,030 44,760 49,236 55,950 61,545 67,140 73,854 74,600 82,060 83,925 98,472 102,575 111,900 123,090 134,280 147,708 164,120 167,850 184,635 205,150 223,800 246,180 295,416 307,725 335,700 369,270 410,300 492,360 615,450 671,400 738,540 820,600 923,175 1,230,900 1,477,080 1,846,350 2,461,800 3,692,700 and 7,385,400, with no remainder.
Since 7,385,400 cannot be divided by just 1 and 7,385,400, it is a composite number.