A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 7584696 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 101 126 149 168 202 252 298 303 404 447 504 596 606 707 808 894 909 1,043 1,192 1,212 1,341 1,414 1,788 1,818 2,086 2,121 2,424 2,682 2,828 3,129 3,576 3,636 4,172 4,242 5,364 5,656 6,258 6,363 7,272 8,344 8,484 9,387 10,728 12,516 12,726 15,049 16,968 18,774 25,032 25,452 30,098 37,548 45,147 50,904 60,196 75,096 90,294 105,343 120,392 135,441 180,588 210,686 270,882 316,029 361,176 421,372 541,764 632,058 842,744 948,087 1,083,528 1,264,116 1,896,174 2,528,232 3,792,348 and 7,584,696, with no remainder.
Since 7,584,696 cannot be divided by just 1 and 7,584,696, it is not a prime number.