The number 6,710,040 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 19 20 24 27 30 36 38 40 45 54 57 60 72 76 81 90 95 108 109 114 120 135 152 162 171 180 190 216 218 228 270 285 324 327 342 360 380 405 436 456 513 540 545 570 648 654 684 760 810 855 872 981 1,026 1,080 1,090 1,140 1,308 1,368 1,539 1,620 1,635 1,710 1,962 2,052 2,071 2,180 2,280 2,565 2,616 2,943 3,078 3,240 3,270 3,420 3,924 4,104 4,142 4,360 4,905 5,130 5,886 6,156 6,213 6,540 6,840 7,695 7,848 8,284 8,829 9,810 10,260 10,355 11,772 12,312 12,426 13,080 14,715 15,390 16,568 17,658 18,639 19,620 20,520 20,710 23,544 24,852 29,430 30,780 31,065 35,316 37,278 39,240 41,420 44,145 49,704 55,917 58,860 61,560 62,130 70,632 74,556 82,840 88,290 93,195 111,834 117,720 124,260 149,112 167,751 176,580 186,390 223,668 248,520 279,585 335,502 353,160 372,780 447,336 559,170 671,004 745,560 838,755 1,118,340 1,342,008 1,677,510 2,236,680 3,355,020 and 6,710,040, with no remainder.
Since 6,710,040 cannot be divided by just 1 and 6,710,040, it is a composite number.