The number 1,409,100 can be evenly divided by 1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 25 28 30 33 35 42 44 50 55 60 61 66 70 75 77 84 100 105 110 122 132 140 150 154 165 175 183 210 220 231 244 275 300 305 308 330 350 366 385 420 427 462 525 550 610 660 671 700 732 770 825 854 915 924 1,050 1,100 1,155 1,220 1,281 1,342 1,525 1,540 1,650 1,708 1,830 1,925 2,013 2,100 2,135 2,310 2,562 2,684 3,050 3,300 3,355 3,660 3,850 4,026 4,270 4,575 4,620 4,697 5,124 5,775 6,100 6,405 6,710 7,700 8,052 8,540 9,150 9,394 10,065 10,675 11,550 12,810 13,420 14,091 16,775 18,300 18,788 20,130 21,350 23,100 23,485 25,620 28,182 32,025 33,550 40,260 42,700 46,970 50,325 56,364 64,050 67,100 70,455 93,940 100,650 117,425 128,100 140,910 201,300 234,850 281,820 352,275 469,700 704,550 and 1,409,100, with no remainder.
Since 1,409,100 cannot be divided by just 1 and 1,409,100, it is a composite number.