The number 2,225,280 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 96 114 120 122 128 152 160 183 190 192 228 240 244 285 304 305 320 366 380 384 456 480 488 570 608 610 640 732 760 912 915 960 976 1,140 1,159 1,216 1,220 1,464 1,520 1,824 1,830 1,920 1,952 2,280 2,318 2,432 2,440 2,928 3,040 3,477 3,648 3,660 3,904 4,560 4,636 4,880 5,795 5,856 6,080 6,954 7,296 7,320 7,808 9,120 9,272 9,760 11,590 11,712 12,160 13,908 14,640 17,385 18,240 18,544 19,520 23,180 23,424 27,816 29,280 34,770 36,480 37,088 39,040 46,360 55,632 58,560 69,540 74,176 92,720 111,264 117,120 139,080 148,352 185,440 222,528 278,160 370,880 445,056 556,320 741,760 1,112,640 and 2,225,280, with no remainder.
Since 2,225,280 cannot be divided by just 1 and 2,225,280, it is a composite number.