A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 8000200 can be evenly divided by 1 2 4 5 8 10 13 17 20 25 26 34 40 50 52 65 68 85 100 104 130 136 170 181 200 221 260 325 340 362 425 442 520 650 680 724 850 884 905 1,105 1,300 1,448 1,700 1,768 1,810 2,210 2,353 2,600 3,077 3,400 3,620 4,420 4,525 4,706 5,525 6,154 7,240 8,840 9,050 9,412 11,050 11,765 12,308 15,385 18,100 18,824 22,100 23,530 24,616 30,770 36,200 40,001 44,200 47,060 58,825 61,540 76,925 80,002 94,120 117,650 123,080 153,850 160,004 200,005 235,300 307,700 320,008 400,010 470,600 615,400 800,020 1,000,025 1,600,040 2,000,050 4,000,100 and 8,000,200, with no remainder.
Since 8,000,200 cannot be divided by just 1 and 8,000,200, it is not a prime number.