The number 5,815,040 can be evenly divided by 1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 55 56 59 64 70 77 80 88 110 112 118 128 140 154 160 176 220 224 236 256 280 295 308 320 352 385 413 440 448 472 560 590 616 640 649 704 770 826 880 896 944 1,120 1,180 1,232 1,280 1,298 1,408 1,540 1,652 1,760 1,792 1,888 2,065 2,240 2,360 2,464 2,596 2,816 3,080 3,245 3,304 3,520 3,776 4,130 4,480 4,543 4,720 4,928 5,192 6,160 6,490 6,608 7,040 7,552 8,260 8,960 9,086 9,440 9,856 10,384 12,320 12,980 13,216 14,080 15,104 16,520 18,172 18,880 19,712 20,768 22,715 24,640 25,960 26,432 33,040 36,344 37,760 41,536 45,430 49,280 51,920 52,864 66,080 72,688 75,520 83,072 90,860 98,560 103,840 105,728 132,160 145,376 166,144 181,720 207,680 264,320 290,752 363,440 415,360 528,640 581,504 726,880 830,720 1,163,008 1,453,760 2,907,520 and 5,815,040, with no remainder.
Since 5,815,040 cannot be divided by just 1 and 5,815,040, it is a composite number.