A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 5268200 can be evenly divided by 1 2 4 5 7 8 10 14 20 25 28 35 40 50 53 56 70 71 100 106 140 142 175 200 212 265 280 284 350 355 371 424 497 530 568 700 710 742 994 1,060 1,325 1,400 1,420 1,484 1,775 1,855 1,988 2,120 2,485 2,650 2,840 2,968 3,550 3,710 3,763 3,976 4,970 5,300 7,100 7,420 7,526 9,275 9,940 10,600 12,425 14,200 14,840 15,052 18,550 18,815 19,880 24,850 26,341 30,104 37,100 37,630 49,700 52,682 74,200 75,260 94,075 99,400 105,364 131,705 150,520 188,150 210,728 263,410 376,300 526,820 658,525 752,600 1,053,640 1,317,050 2,634,100 and 5,268,200, with no remainder.
Since 5,268,200 cannot be divided by just 1 and 5,268,200, it is not a prime number.