A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2929320 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 79 90 103 120 158 180 206 237 309 316 360 395 412 474 515 618 632 711 790 824 927 948 1,030 1,185 1,236 1,422 1,545 1,580 1,854 1,896 2,060 2,370 2,472 2,844 3,090 3,160 3,555 3,708 4,120 4,635 4,740 5,688 6,180 7,110 7,416 8,137 9,270 9,480 12,360 14,220 16,274 18,540 24,411 28,440 32,548 37,080 40,685 48,822 65,096 73,233 81,370 97,644 122,055 146,466 162,740 195,288 244,110 292,932 325,480 366,165 488,220 585,864 732,330 976,440 1,464,660 and 2,929,320, with no remainder.
Since 2,929,320 cannot be divided by just 1 and 2,929,320, it is not a prime number.