The number 714,000 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 16 17 20 21 24 25 28 30 34 35 40 42 48 50 51 56 60 68 70 75 80 84 85 100 102 105 112 119 120 125 136 140 150 168 170 175 200 204 210 238 240 250 255 272 280 300 336 340 350 357 375 400 408 420 425 476 500 510 525 560 595 600 680 700 714 750 816 840 850 875 952 1,000 1,020 1,050 1,190 1,200 1,275 1,360 1,400 1,428 1,500 1,680 1,700 1,750 1,785 1,904 2,000 2,040 2,100 2,125 2,380 2,550 2,625 2,800 2,856 2,975 3,000 3,400 3,500 3,570 4,080 4,200 4,250 4,760 5,100 5,250 5,712 5,950 6,000 6,375 6,800 7,000 7,140 8,400 8,500 8,925 9,520 10,200 10,500 11,900 12,750 14,000 14,280 14,875 17,000 17,850 20,400 21,000 23,800 25,500 28,560 29,750 34,000 35,700 42,000 44,625 47,600 51,000 59,500 71,400 89,250 102,000 119,000 142,800 178,500 238,000 357,000 and 714,000, with no remainder.
Since 714,000 cannot be divided by just 1 and 714,000, it is a composite number.