A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 7049152 can be evenly divided by 1 2 4 8 11 16 17 19 22 31 32 34 38 44 62 64 68 76 88 124 136 152 176 187 209 248 272 304 323 341 352 374 418 496 527 544 589 608 646 682 704 748 836 992 1,054 1,088 1,178 1,216 1,292 1,364 1,496 1,672 1,984 2,108 2,356 2,584 2,728 2,992 3,344 3,553 4,216 4,712 5,168 5,456 5,797 5,984 6,479 6,688 7,106 8,432 9,424 10,013 10,336 10,912 11,594 11,968 12,958 13,376 14,212 16,864 18,848 20,026 20,672 21,824 23,188 25,916 28,424 33,728 37,696 40,052 46,376 51,832 56,848 80,104 92,752 103,664 110,143 113,696 160,208 185,504 207,328 220,286 227,392 320,416 371,008 414,656 440,572 640,832 881,144 1,762,288 3,524,576 and 7,049,152, with no remainder.
Since 7,049,152 cannot be divided by just 1 and 7,049,152, it is not a prime number.