A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 6711012 can be evenly divided by 1 2 3 4 6 7 9 11 12 14 18 21 22 27 28 33 36 42 44 54 63 66 77 81 84 99 108 126 132 154 162 189 198 231 252 269 297 308 324 378 396 462 538 567 594 693 756 807 891 924 1,076 1,134 1,188 1,386 1,614 1,782 1,883 2,079 2,268 2,421 2,772 2,959 3,228 3,564 3,766 4,158 4,842 5,649 5,918 6,237 7,263 7,532 8,316 8,877 9,684 11,298 11,836 12,474 14,526 16,947 17,754 20,713 21,789 22,596 24,948 26,631 29,052 33,894 35,508 41,426 43,578 50,841 53,262 62,139 67,788 79,893 82,852 87,156 101,682 106,524 124,278 152,523 159,786 186,417 203,364 239,679 248,556 305,046 319,572 372,834 479,358 559,251 610,092 745,668 958,716 1,118,502 1,677,753 2,237,004 3,355,506 and 6,711,012, with no remainder.
Since 6,711,012 cannot be divided by just 1 and 6,711,012, it is not a prime number.