A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 6901104 can be evenly divided by 1 2 3 4 6 7 8 12 14 16 19 21 23 24 28 38 42 46 47 48 56 57 69 76 84 92 94 112 114 133 138 141 152 161 168 184 188 228 266 276 282 304 322 329 336 368 376 399 437 456 483 532 552 564 644 658 752 798 874 893 912 966 987 1,064 1,081 1,104 1,128 1,288 1,311 1,316 1,596 1,748 1,786 1,932 1,974 2,128 2,162 2,256 2,576 2,622 2,632 2,679 3,059 3,192 3,243 3,496 3,572 3,864 3,948 4,324 5,244 5,264 5,358 6,118 6,251 6,384 6,486 6,992 7,144 7,567 7,728 7,896 8,648 9,177 10,488 10,716 12,236 12,502 12,972 14,288 15,134 15,792 17,296 18,354 18,753 20,539 20,976 21,432 22,701 24,472 25,004 25,944 30,268 36,708 37,506 41,078 42,864 45,402 48,944 50,008 51,888 60,536 61,617 73,416 75,012 82,156 90,804 100,016 121,072 123,234 143,773 146,832 150,024 164,312 181,608 246,468 287,546 300,048 328,624 363,216 431,319 492,936 575,092 862,638 985,872 1,150,184 1,725,276 2,300,368 3,450,552 and 6,901,104, with no remainder.
Since 6,901,104 cannot be divided by just 1 and 6,901,104, it is not a prime number.