A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 8088000 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 125 150 160 192 200 240 250 300 320 337 375 400 480 500 600 674 750 800 960 1,000 1,011 1,200 1,348 1,500 1,600 1,685 2,000 2,022 2,400 2,696 3,000 3,370 4,000 4,044 4,800 5,055 5,392 6,000 6,740 8,000 8,088 8,425 10,110 10,784 12,000 13,480 16,176 16,850 20,220 21,568 24,000 25,275 26,960 32,352 33,700 40,440 42,125 50,550 53,920 64,704 67,400 80,880 84,250 101,100 107,840 126,375 134,800 161,760 168,500 202,200 252,750 269,600 323,520 337,000 404,400 505,500 539,200 674,000 808,800 1,011,000 1,348,000 1,617,600 2,022,000 2,696,000 4,044,000 and 8,088,000, with no remainder.
Since 8,088,000 cannot be divided by just 1 and 8,088,000, it is not a prime number.