The number 429,000 can be evenly divided by 1 2 3 4 5 6 8 10 11 12 13 15 20 22 24 25 26 30 33 39 40 44 50 52 55 60 65 66 75 78 88 100 104 110 120 125 130 132 143 150 156 165 195 200 220 250 260 264 275 286 300 312 325 330 375 390 429 440 500 520 550 572 600 650 660 715 750 780 825 858 975 1,000 1,100 1,144 1,300 1,320 1,375 1,430 1,500 1,560 1,625 1,650 1,716 1,950 2,145 2,200 2,600 2,750 2,860 3,000 3,250 3,300 3,432 3,575 3,900 4,125 4,290 4,875 5,500 5,720 6,500 6,600 7,150 7,800 8,250 8,580 9,750 10,725 11,000 13,000 14,300 16,500 17,160 17,875 19,500 21,450 28,600 33,000 35,750 39,000 42,900 53,625 71,500 85,800 107,250 143,000 214,500 and 429,000, with no remainder.
Since 429,000 cannot be divided by just 1 and 429,000, it is a composite number.