The number 3,295,740 can be evenly divided by 1 2 3 4 5 6 7 10 12 14 15 19 20 21 28 30 35 38 42 49 57 59 60 70 76 84 95 98 105 114 118 133 140 147 177 190 196 210 228 236 245 266 285 294 295 354 380 399 413 420 490 532 570 588 590 665 708 735 798 826 885 931 980 1,121 1,140 1,180 1,239 1,330 1,470 1,596 1,652 1,770 1,862 1,995 2,065 2,242 2,478 2,660 2,793 2,891 2,940 3,363 3,540 3,724 3,990 4,130 4,484 4,655 4,956 5,586 5,605 5,782 6,195 6,726 7,847 7,980 8,260 8,673 9,310 11,172 11,210 11,564 12,390 13,452 13,965 14,455 15,694 16,815 17,346 18,620 22,420 23,541 24,780 27,930 28,910 31,388 33,630 34,692 39,235 43,365 47,082 54,929 55,860 57,820 67,260 78,470 86,730 94,164 109,858 117,705 156,940 164,787 173,460 219,716 235,410 274,645 329,574 470,820 549,290 659,148 823,935 1,098,580 1,647,870 and 3,295,740, with no remainder.
Since 3,295,740 cannot be divided by just 1 and 3,295,740, it is a composite number.