A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 7519932 can be evenly divided by 1 2 3 4 6 7 9 12 14 18 21 27 28 29 36 42 49 54 58 63 84 87 98 108 116 126 147 174 189 196 203 252 261 294 343 348 378 406 441 522 588 609 686 756 783 812 882 1,029 1,044 1,218 1,323 1,372 1,421 1,566 1,764 1,827 2,058 2,401 2,436 2,646 2,842 3,087 3,132 3,654 4,116 4,263 4,802 5,292 5,481 5,684 6,174 7,203 7,308 8,526 9,261 9,604 9,947 10,962 12,348 12,789 14,406 17,052 18,522 19,894 21,609 21,924 25,578 28,812 29,841 37,044 38,367 39,788 43,218 51,156 59,682 64,827 69,629 76,734 86,436 89,523 119,364 129,654 139,258 153,468 179,046 208,887 259,308 268,569 278,516 358,092 417,774 537,138 626,661 835,548 1,074,276 1,253,322 1,879,983 2,506,644 3,759,966 and 7,519,932, with no remainder.
Since 7,519,932 cannot be divided by just 1 and 7,519,932, it is not a prime number.