The number 5,720,880 can be evenly divided by 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 121 132 165 176 197 220 240 242 264 330 363 394 440 484 528 591 605 660 726 788 880 968 985 1,182 1,210 1,320 1,452 1,576 1,815 1,936 1,970 2,167 2,364 2,420 2,640 2,904 2,955 3,152 3,630 3,940 4,334 4,728 4,840 5,808 5,910 6,501 7,260 7,880 8,668 9,456 9,680 10,835 11,820 13,002 14,520 15,760 17,336 21,670 23,640 23,837 26,004 29,040 32,505 34,672 43,340 47,280 47,674 52,008 65,010 71,511 86,680 95,348 104,016 119,185 130,020 143,022 173,360 190,696 238,370 260,040 286,044 357,555 381,392 476,740 520,080 572,088 715,110 953,480 1,144,176 1,430,220 1,906,960 2,860,440 and 5,720,880, with no remainder.
Since 5,720,880 cannot be divided by just 1 and 5,720,880, it is a composite number.