A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 6080508 can be evenly divided by 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 49 54 63 81 84 98 108 126 147 162 189 196 252 294 324 378 383 441 567 588 756 766 882 1,134 1,149 1,323 1,532 1,764 2,268 2,298 2,646 2,681 3,447 3,969 4,596 5,292 5,362 6,894 7,938 8,043 10,341 10,724 13,788 15,876 16,086 18,767 20,682 24,129 31,023 32,172 37,534 41,364 48,258 56,301 62,046 72,387 75,068 96,516 112,602 124,092 144,774 168,903 217,161 225,204 289,548 337,806 434,322 506,709 675,612 868,644 1,013,418 1,520,127 2,026,836 3,040,254 and 6,080,508, with no remainder.
Since 6,080,508 cannot be divided by just 1 and 6,080,508, it is not a prime number.