The number 7,111,104 can be evenly divided by 1 2 3 4 6 7 8 11 12 13 14 16 21 22 24 26 28 32 33 37 39 42 44 48 52 56 64 66 74 77 78 84 88 91 96 104 111 112 132 143 148 154 156 168 176 182 192 208 222 224 231 259 264 273 286 296 308 312 336 352 364 407 416 429 444 448 462 481 518 528 546 572 592 616 624 672 704 728 777 814 832 858 888 924 962 1,001 1,036 1,056 1,092 1,144 1,184 1,221 1,232 1,248 1,344 1,443 1,456 1,554 1,628 1,716 1,776 1,848 1,924 2,002 2,072 2,112 2,184 2,288 2,368 2,442 2,464 2,496 2,849 2,886 2,912 3,003 3,108 3,256 3,367 3,432 3,552 3,696 3,848 4,004 4,144 4,368 4,576 4,884 4,928 5,291 5,698 5,772 5,824 6,006 6,216 6,512 6,734 6,864 7,104 7,392 7,696 8,008 8,288 8,547 8,736 9,152 9,768 10,101 10,582 11,396 11,544 12,012 12,432 13,024 13,468 13,728 14,784 15,392 15,873 16,016 16,576 17,094 17,472 19,536 20,202 21,164 22,792 23,088 24,024 24,864 26,048 26,936 27,456 30,784 31,746 32,032 34,188 37,037 39,072 40,404 42,328 45,584 46,176 48,048 49,728 53,872 63,492 64,064 68,376 74,074 78,144 80,808 84,656 91,168 92,352 96,096 107,744 111,111 126,984 136,752 148,148 161,616 169,312 182,336 192,192 215,488 222,222 253,968 273,504 296,296 323,232 338,624 444,444 507,936 547,008 592,592 646,464 888,888 1,015,872 1,185,184 1,777,776 2,370,368 3,555,552 and 7,111,104, with no remainder.
Since 7,111,104 cannot be divided by just 1 and 7,111,104, it is a composite number.