The number 3,774,000 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 17 20 24 25 30 34 37 40 48 50 51 60 68 74 75 80 85 100 102 111 120 125 136 148 150 170 185 200 204 222 240 250 255 272 296 300 340 370 375 400 408 425 444 500 510 555 592 600 629 680 740 750 816 850 888 925 1,000 1,020 1,110 1,200 1,258 1,275 1,360 1,480 1,500 1,700 1,776 1,850 1,887 2,000 2,040 2,125 2,220 2,516 2,550 2,775 2,960 3,000 3,145 3,400 3,700 3,774 4,080 4,250 4,440 4,625 5,032 5,100 5,550 6,000 6,290 6,375 6,800 7,400 7,548 8,500 8,880 9,250 9,435 10,064 10,200 11,100 12,580 12,750 13,875 14,800 15,096 15,725 17,000 18,500 18,870 20,400 22,200 25,160 25,500 27,750 30,192 31,450 34,000 37,000 37,740 44,400 47,175 50,320 51,000 55,500 62,900 74,000 75,480 78,625 94,350 102,000 111,000 125,800 150,960 157,250 188,700 222,000 235,875 251,600 314,500 377,400 471,750 629,000 754,800 943,500 1,258,000 1,887,000 and 3,774,000, with no remainder.
Since 3,774,000 cannot be divided by just 1 and 3,774,000, it is a composite number.