A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 8246700 can be evenly divided by 1 2 3 4 5 6 7 9 10 11 12 14 15 17 18 20 21 22 25 28 30 33 34 35 36 42 44 45 49 50 51 55 60 63 66 68 70 75 77 84 85 90 98 99 100 102 105 110 119 126 132 140 147 150 153 154 165 170 175 180 187 196 198 204 210 220 225 231 238 245 252 255 275 294 300 306 308 315 330 340 350 357 374 385 396 420 425 441 450 462 476 490 495 510 525 539 550 561 588 595 612 630 660 693 700 714 735 748 765 770 825 833 850 882 900 924 935 980 990 1,020 1,050 1,071 1,078 1,100 1,122 1,155 1,190 1,225 1,260 1,275 1,309 1,386 1,428 1,470 1,530 1,540 1,575 1,617 1,650 1,666 1,683 1,700 1,764 1,785 1,870 1,925 1,980 2,100 2,142 2,156 2,205 2,244 2,310 2,380 2,450 2,475 2,499 2,550 2,618 2,695 2,772 2,805 2,940 2,975 3,060 3,150 3,234 3,300 3,332 3,366 3,465 3,570 3,675 3,740 3,825 3,850 3,927 4,165 4,284 4,410 4,620 4,675 4,851 4,900 4,950 4,998 5,100 5,236 5,355 5,390 5,610 5,775 5,950 6,300 6,468 6,545 6,732 6,930 7,140 7,350 7,497 7,650 7,700 7,854 8,085 8,330 8,415 8,820 8,925 9,163 9,350 9,702 9,900 9,996 10,710 10,780 11,025 11,220 11,550 11,781 11,900 12,495 13,090 13,475 13,860 14,025 14,700 14,994 15,300 15,708 16,170 16,660 16,830 17,325 17,850 18,326 18,700 19,404 19,635 20,825 21,420 22,050 23,100 23,562 24,255 24,990 26,180 26,775 26,950 27,489 28,050 29,988 32,340 32,725 33,660 34,650 35,700 36,652 37,485 39,270 40,425 41,650 42,075 44,100 45,815 47,124 48,510 49,980 53,550 53,900 54,978 56,100 58,905 62,475 65,450 69,300 74,970 78,540 80,850 82,467 83,300 84,150 91,630 97,020 98,175 107,100 109,956 117,810 121,275 124,950 130,900 137,445 149,940 161,700 164,934 168,300 183,260 187,425 196,350 229,075 235,620 242,550 249,900 274,890 294,525 329,868 374,850 392,700 412,335 458,150 485,100 549,780 589,050 687,225 749,700 824,670 916,300 1,178,100 1,374,450 1,649,340 2,061,675 2,748,900 4,123,350 and 8,246,700, with no remainder.
Since 8,246,700 cannot be divided by just 1 and 8,246,700, it is not a prime number.