A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 6752130 can be evenly divided by 1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 37 42 55 66 70 74 77 79 105 110 111 154 158 165 185 210 222 231 237 259 330 370 385 395 407 462 474 518 553 555 770 777 790 814 869 1,106 1,110 1,155 1,185 1,221 1,295 1,554 1,659 1,738 2,035 2,310 2,370 2,442 2,590 2,607 2,765 2,849 2,923 3,318 3,885 4,070 4,345 5,214 5,530 5,698 5,846 6,083 6,105 7,770 8,295 8,547 8,690 8,769 12,166 12,210 13,035 14,245 14,615 16,590 17,094 17,538 18,249 20,461 26,070 28,490 29,230 30,415 32,153 36,498 40,922 42,735 43,845 60,830 61,383 64,306 85,470 87,690 91,245 96,459 102,305 122,766 160,765 182,490 192,918 204,610 225,071 306,915 321,530 450,142 482,295 613,830 675,213 964,590 1,125,355 1,350,426 2,250,710 3,376,065 and 6,752,130, with no remainder.
Since 6,752,130 cannot be divided by just 1 and 6,752,130, it is not a prime number.