The number 3,510,360 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 42 45 49 56 60 63 70 72 84 90 98 105 120 126 140 147 168 180 196 199 210 245 252 280 294 315 360 392 398 420 441 490 504 588 597 630 735 796 840 882 980 995 1,176 1,194 1,260 1,393 1,470 1,592 1,764 1,791 1,960 1,990 2,205 2,388 2,520 2,786 2,940 2,985 3,528 3,582 3,980 4,179 4,410 4,776 5,572 5,880 5,970 6,965 7,164 7,960 8,358 8,820 8,955 9,751 11,144 11,940 12,537 13,930 14,328 16,716 17,640 17,910 19,502 20,895 23,880 25,074 27,860 29,253 33,432 35,820 39,004 41,790 48,755 50,148 55,720 58,506 62,685 71,640 78,008 83,580 87,759 97,510 100,296 117,012 125,370 146,265 167,160 175,518 195,020 234,024 250,740 292,530 351,036 390,040 438,795 501,480 585,060 702,072 877,590 1,170,120 1,755,180 and 3,510,360, with no remainder.
Since 3,510,360 cannot be divided by just 1 and 3,510,360, it is a composite number.