A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4314800 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 23 25 28 35 40 46 50 56 67 70 80 92 100 112 115 134 140 161 175 184 200 230 268 280 322 335 350 368 400 460 469 536 560 575 644 670 700 805 920 938 1,072 1,150 1,288 1,340 1,400 1,541 1,610 1,675 1,840 1,876 2,300 2,345 2,576 2,680 2,800 3,082 3,220 3,350 3,752 4,025 4,600 4,690 5,360 6,164 6,440 6,700 7,504 7,705 8,050 9,200 9,380 10,787 11,725 12,328 12,880 13,400 15,410 16,100 18,760 21,574 23,450 24,656 26,800 30,820 32,200 37,520 38,525 43,148 46,900 53,935 61,640 64,400 77,050 86,296 93,800 107,870 123,280 154,100 172,592 187,600 215,740 269,675 308,200 431,480 539,350 616,400 862,960 1,078,700 2,157,400 and 4,314,800, with no remainder.
Since 4,314,800 cannot be divided by just 1 and 4,314,800, it is not a prime number.