The number 1,736,000 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 25 28 31 32 35 40 50 56 62 64 70 80 100 112 124 125 140 155 160 175 200 217 224 248 250 280 310 320 350 400 434 448 496 500 560 620 700 775 800 868 875 992 1,000 1,085 1,120 1,240 1,400 1,550 1,600 1,736 1,750 1,984 2,000 2,170 2,240 2,480 2,800 3,100 3,472 3,500 3,875 4,000 4,340 4,960 5,425 5,600 6,200 6,944 7,000 7,750 8,000 8,680 9,920 10,850 11,200 12,400 13,888 14,000 15,500 17,360 21,700 24,800 27,125 28,000 31,000 34,720 43,400 49,600 54,250 56,000 62,000 69,440 86,800 108,500 124,000 173,600 217,000 248,000 347,200 434,000 868,000 and 1,736,000, with no remainder.
Since 1,736,000 cannot be divided by just 1 and 1,736,000, it is a composite number.