A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2934120 can be evenly divided by 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 49 56 60 70 84 98 105 120 140 147 168 196 210 245 280 294 392 420 490 499 588 735 840 980 998 1,176 1,470 1,497 1,960 1,996 2,495 2,940 2,994 3,493 3,992 4,990 5,880 5,988 6,986 7,485 9,980 10,479 11,976 13,972 14,970 17,465 19,960 20,958 24,451 27,944 29,940 34,930 41,916 48,902 52,395 59,880 69,860 73,353 83,832 97,804 104,790 122,255 139,720 146,706 195,608 209,580 244,510 293,412 366,765 419,160 489,020 586,824 733,530 978,040 1,467,060 and 2,934,120, with no remainder.
Since 2,934,120 cannot be divided by just 1 and 2,934,120, it is not a prime number.