A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 6059718 can be evenly divided by 1 2 3 6 7 9 14 17 18 21 23 27 34 41 42 46 51 54 63 69 82 102 119 123 126 138 153 161 189 207 238 246 287 306 322 357 369 378 391 414 459 483 574 621 697 714 738 782 861 918 943 966 1,071 1,107 1,173 1,242 1,394 1,449 1,722 1,886 2,091 2,142 2,214 2,346 2,583 2,737 2,829 2,898 3,213 3,519 4,182 4,347 4,879 5,166 5,474 5,658 6,273 6,426 6,601 7,038 7,749 8,211 8,487 8,694 9,758 10,557 12,546 13,202 14,637 15,498 16,031 16,422 16,974 18,819 19,803 21,114 24,633 25,461 29,274 32,062 37,638 39,606 43,911 48,093 49,266 50,922 59,409 73,899 87,822 96,186 112,217 118,818 131,733 144,279 147,798 178,227 224,434 263,466 288,558 336,651 356,454 432,837 673,302 865,674 1,009,953 2,019,906 3,029,859 and 6,059,718, with no remainder.
Since 6,059,718 cannot be divided by just 1 and 6,059,718, it is not a prime number.