The number 3,608,352 can be evenly divided by 1 2 3 4 6 8 9 11 12 16 17 18 22 24 32 33 34 36 44 48 51 66 67 68 72 88 96 99 102 132 134 136 144 153 176 187 198 201 204 264 268 272 288 306 352 374 396 402 408 528 536 544 561 603 612 737 748 792 804 816 1,056 1,072 1,122 1,139 1,206 1,224 1,474 1,496 1,584 1,608 1,632 1,683 2,144 2,211 2,244 2,278 2,412 2,448 2,948 2,992 3,168 3,216 3,366 3,417 4,422 4,488 4,556 4,824 4,896 5,896 5,984 6,432 6,633 6,732 6,834 8,844 8,976 9,112 9,648 10,251 11,792 12,529 13,266 13,464 13,668 17,688 17,952 18,224 19,296 20,502 23,584 25,058 26,532 26,928 27,336 35,376 36,448 37,587 41,004 50,116 53,064 53,856 54,672 70,752 75,174 82,008 100,232 106,128 109,344 112,761 150,348 164,016 200,464 212,256 225,522 300,696 328,032 400,928 451,044 601,392 902,088 1,202,784 1,804,176 and 3,608,352, with no remainder.
Since 3,608,352 cannot be divided by just 1 and 3,608,352, it is a composite number.