The number 4,113,648 can be evenly divided by 1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 24 28 33 36 42 44 48 49 53 56 63 66 72 77 84 88 98 99 106 112 126 132 144 147 154 159 168 176 196 198 212 231 252 264 294 308 318 336 371 392 396 424 441 462 477 504 528 539 583 588 616 636 693 742 784 792 848 882 924 954 1,008 1,078 1,113 1,166 1,176 1,232 1,272 1,386 1,484 1,584 1,617 1,749 1,764 1,848 1,908 2,156 2,226 2,332 2,352 2,544 2,597 2,772 2,968 3,234 3,339 3,498 3,528 3,696 3,816 4,081 4,312 4,452 4,664 4,851 5,194 5,247 5,544 5,936 6,468 6,678 6,996 7,056 7,632 7,791 8,162 8,624 8,904 9,328 9,702 10,388 10,494 11,088 12,243 12,936 13,356 13,992 15,582 16,324 17,808 19,404 20,776 20,988 23,373 24,486 25,872 26,712 27,984 28,567 31,164 32,648 36,729 38,808 41,552 41,976 46,746 48,972 53,424 57,134 62,328 65,296 73,458 77,616 83,952 85,701 93,492 97,944 114,268 124,656 146,916 171,402 186,984 195,888 228,536 257,103 293,832 342,804 373,968 457,072 514,206 587,664 685,608 1,028,412 1,371,216 2,056,824 and 4,113,648, with no remainder.
Since 4,113,648 cannot be divided by just 1 and 4,113,648, it is a composite number.