A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2769912 can be evenly divided by 1 2 3 4 6 8 9 12 17 18 24 31 34 36 51 62 68 72 73 93 102 124 136 146 153 186 204 219 248 279 292 306 372 408 438 527 558 584 612 657 744 876 1,054 1,116 1,224 1,241 1,314 1,581 1,752 2,108 2,232 2,263 2,482 2,628 3,162 3,723 4,216 4,526 4,743 4,964 5,256 6,324 6,789 7,446 9,052 9,486 9,928 11,169 12,648 13,578 14,892 18,104 18,972 20,367 22,338 27,156 29,784 37,944 38,471 40,734 44,676 54,312 76,942 81,468 89,352 115,413 153,884 162,936 230,826 307,768 346,239 461,652 692,478 923,304 1,384,956 and 2,769,912, with no remainder.
Since 2,769,912 cannot be divided by just 1 and 2,769,912, it is not a prime number.