The number 4,202,100 can be evenly divided by 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 23 25 28 29 30 35 36 42 45 46 50 58 60 63 69 70 75 84 87 90 92 100 105 115 116 126 138 140 145 150 161 174 175 180 203 207 210 225 230 252 261 276 290 300 315 322 345 348 350 406 414 420 435 450 460 483 522 525 575 580 609 630 644 667 690 700 725 805 812 828 870 900 966 1,015 1,035 1,044 1,050 1,150 1,218 1,260 1,305 1,334 1,380 1,449 1,450 1,575 1,610 1,725 1,740 1,827 1,932 2,001 2,030 2,070 2,100 2,175 2,300 2,415 2,436 2,610 2,668 2,898 2,900 3,045 3,150 3,220 3,335 3,450 3,654 4,002 4,025 4,060 4,140 4,350 4,669 4,830 5,075 5,175 5,220 5,796 6,003 6,090 6,300 6,525 6,670 6,900 7,245 7,308 8,004 8,050 8,700 9,135 9,338 9,660 10,005 10,150 10,350 12,006 12,075 12,180 13,050 13,340 14,007 14,490 15,225 16,100 16,675 18,270 18,676 20,010 20,300 20,700 23,345 24,012 24,150 26,100 28,014 28,980 30,015 30,450 33,350 36,225 36,540 40,020 42,021 45,675 46,690 48,300 50,025 56,028 60,030 60,900 66,700 70,035 72,450 84,042 91,350 93,380 100,050 116,725 120,060 140,070 144,900 150,075 168,084 182,700 200,100 210,105 233,450 280,140 300,150 350,175 420,210 466,900 600,300 700,350 840,420 1,050,525 1,400,700 2,101,050 and 4,202,100, with no remainder.
Since 4,202,100 cannot be divided by just 1 and 4,202,100, it is a composite number.