A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 8800572 can be evenly divided by 1 2 3 4 6 11 12 19 22 29 33 38 44 57 58 66 76 87 114 116 121 132 174 209 228 242 319 348 363 418 484 551 627 638 726 836 957 1,102 1,254 1,276 1,331 1,452 1,653 1,914 2,204 2,299 2,508 2,662 3,306 3,509 3,828 3,993 4,598 5,324 6,061 6,612 6,897 7,018 7,986 9,196 10,527 12,122 13,794 14,036 15,972 18,183 21,054 24,244 25,289 27,588 36,366 38,599 42,108 50,578 66,671 72,732 75,867 77,198 101,156 115,797 133,342 151,734 154,396 200,013 231,594 266,684 303,468 400,026 463,188 733,381 800,052 1,466,762 2,200,143 2,933,524 4,400,286 and 8,800,572, with no remainder.
Since 8,800,572 cannot be divided by just 1 and 8,800,572, it is not a prime number.