A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 7035336 can be evenly divided by 1 2 3 4 6 7 8 9 11 12 14 18 21 22 24 27 28 33 36 42 44 47 54 56 63 66 72 77 81 84 88 94 99 108 126 132 141 154 162 168 188 189 198 216 231 243 252 264 282 297 308 324 329 376 378 396 423 462 486 504 517 564 567 594 616 648 658 693 756 792 846 891 924 972 987 1,034 1,128 1,134 1,188 1,269 1,316 1,386 1,512 1,551 1,692 1,701 1,782 1,848 1,944 1,974 2,068 2,079 2,268 2,376 2,538 2,632 2,673 2,772 2,961 3,102 3,384 3,402 3,564 3,619 3,807 3,948 4,136 4,158 4,536 4,653 5,076 5,346 5,544 5,922 6,204 6,237 6,804 7,128 7,238 7,614 7,896 8,316 8,883 9,306 10,152 10,692 10,857 11,421 11,844 12,408 12,474 13,608 13,959 14,476 15,228 16,632 17,766 18,612 18,711 21,384 21,714 22,842 23,688 24,948 26,649 27,918 28,952 30,456 32,571 35,532 37,224 37,422 41,877 43,428 45,684 49,896 53,298 55,836 65,142 71,064 74,844 79,947 83,754 86,856 91,368 97,713 106,596 111,672 125,631 130,284 149,688 159,894 167,508 195,426 213,192 251,262 260,568 293,139 319,788 335,016 390,852 502,524 586,278 639,576 781,704 879,417 1,005,048 1,172,556 1,758,834 2,345,112 3,517,668 and 7,035,336, with no remainder.
Since 7,035,336 cannot be divided by just 1 and 7,035,336, it is not a prime number.