The number 8,901,120 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 32 38 40 48 57 60 61 64 76 80 95 96 114 120 122 128 152 160 183 190 192 228 240 244 256 285 304 305 320 366 380 384 456 480 488 512 570 608 610 640 732 760 768 912 915 960 976 1,140 1,159 1,216 1,220 1,280 1,464 1,520 1,536 1,824 1,830 1,920 1,952 2,280 2,318 2,432 2,440 2,560 2,928 3,040 3,477 3,648 3,660 3,840 3,904 4,560 4,636 4,864 4,880 5,795 5,856 6,080 6,954 7,296 7,320 7,680 7,808 9,120 9,272 9,728 9,760 11,590 11,712 12,160 13,908 14,592 14,640 15,616 17,385 18,240 18,544 19,520 23,180 23,424 24,320 27,816 29,184 29,280 31,232 34,770 36,480 37,088 39,040 46,360 46,848 48,640 55,632 58,560 69,540 72,960 74,176 78,080 92,720 93,696 111,264 117,120 139,080 145,920 148,352 156,160 185,440 222,528 234,240 278,160 296,704 370,880 445,056 468,480 556,320 593,408 741,760 890,112 1,112,640 1,483,520 1,780,224 2,225,280 2,967,040 4,450,560 and 8,901,120, with no remainder.
Since 8,901,120 cannot be divided by just 1 and 8,901,120, it is a composite number.