The number 8,540,160 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 139 160 192 240 256 278 320 384 417 480 512 556 640 695 768 834 960 1,024 1,112 1,280 1,390 1,536 1,668 1,920 2,048 2,085 2,224 2,560 2,780 3,072 3,336 3,840 4,096 4,170 4,448 5,120 5,560 6,144 6,672 7,680 8,340 8,896 10,240 11,120 12,288 13,344 15,360 16,680 17,792 20,480 22,240 26,688 30,720 33,360 35,584 44,480 53,376 61,440 66,720 71,168 88,960 106,752 133,440 142,336 177,920 213,504 266,880 284,672 355,840 427,008 533,760 569,344 711,680 854,016 1,067,520 1,423,360 1,708,032 2,135,040 2,846,720 4,270,080 and 8,540,160, with no remainder.
Since 8,540,160 cannot be divided by just 1 and 8,540,160, it is a composite number.