A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 3467310 can be evenly divided by 1 2 3 5 6 7 10 11 14 15 19 21 22 30 33 35 38 42 55 57 66 70 77 79 95 105 110 114 133 154 158 165 190 209 210 231 237 266 285 330 385 395 399 418 462 474 553 570 627 665 770 790 798 869 1,045 1,106 1,155 1,185 1,254 1,330 1,463 1,501 1,659 1,738 1,995 2,090 2,310 2,370 2,607 2,765 2,926 3,002 3,135 3,318 3,990 4,345 4,389 4,503 5,214 5,530 6,083 6,270 7,315 7,505 8,295 8,690 8,778 9,006 10,507 12,166 13,035 14,630 15,010 16,511 16,590 18,249 21,014 21,945 22,515 26,070 30,415 31,521 33,022 36,498 43,890 45,030 49,533 52,535 60,830 63,042 82,555 91,245 99,066 105,070 115,577 157,605 165,110 182,490 231,154 247,665 315,210 346,731 495,330 577,885 693,462 1,155,770 1,733,655 and 3,467,310, with no remainder.
Since 3,467,310 cannot be divided by just 1 and 3,467,310, it is not a prime number.