A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 7010388 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 99 108 126 132 154 162 189 198 231 252 281 297 308 324 378 396 462 562 567 594 693 756 843 891 924 1,124 1,134 1,188 1,386 1,686 1,782 1,967 2,079 2,268 2,529 2,772 3,091 3,372 3,564 3,934 4,158 5,058 5,901 6,182 6,237 7,587 7,868 8,316 9,273 10,116 11,802 12,364 12,474 15,174 17,703 18,546 21,637 22,761 23,604 24,948 27,819 30,348 35,406 37,092 43,274 45,522 53,109 55,638 64,911 70,812 83,457 86,548 91,044 106,218 111,276 129,822 159,327 166,914 194,733 212,436 250,371 259,644 318,654 333,828 389,466 500,742 584,199 637,308 778,932 1,001,484 1,168,398 1,752,597 2,336,796 3,505,194 and 7,010,388, with no remainder.
Since 7,010,388 cannot be divided by just 1 and 7,010,388, it is not a prime number.