The number 5,700,000 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 19 20 24 25 30 32 38 40 48 50 57 60 75 76 80 95 96 100 114 120 125 150 152 160 190 200 228 240 250 285 300 304 375 380 400 456 475 480 500 570 600 608 625 750 760 800 912 950 1,000 1,140 1,200 1,250 1,425 1,500 1,520 1,824 1,875 1,900 2,000 2,280 2,375 2,400 2,500 2,850 3,000 3,040 3,125 3,750 3,800 4,000 4,560 4,750 5,000 5,700 6,000 6,250 7,125 7,500 7,600 9,120 9,375 9,500 10,000 11,400 11,875 12,000 12,500 14,250 15,000 15,200 18,750 19,000 20,000 22,800 23,750 25,000 28,500 30,000 35,625 37,500 38,000 45,600 47,500 50,000 57,000 59,375 60,000 71,250 75,000 76,000 95,000 100,000 114,000 118,750 142,500 150,000 178,125 190,000 228,000 237,500 285,000 300,000 356,250 380,000 475,000 570,000 712,500 950,000 1,140,000 1,425,000 1,900,000 2,850,000 and 5,700,000, with no remainder.
Since 5,700,000 cannot be divided by just 1 and 5,700,000, it is a composite number.