A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 9080148 can be evenly divided by 1 2 3 4 6 7 11 12 14 21 22 28 31 33 42 44 62 66 77 84 93 124 132 154 186 217 231 308 317 341 372 434 462 634 651 682 868 924 951 1,023 1,268 1,302 1,364 1,902 2,046 2,219 2,387 2,604 3,487 3,804 4,092 4,438 4,774 6,657 6,974 7,161 8,876 9,548 9,827 10,461 13,314 13,948 14,322 19,654 20,922 24,409 26,628 28,644 29,481 39,308 41,844 48,818 58,962 68,789 73,227 97,636 108,097 117,924 137,578 146,454 206,367 216,194 275,156 292,908 324,291 412,734 432,388 648,582 756,679 825,468 1,297,164 1,513,358 2,270,037 3,026,716 4,540,074 and 9,080,148, with no remainder.
Since 9,080,148 cannot be divided by just 1 and 9,080,148, it is not a prime number.