A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 6101568 can be evenly divided by 1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 64 66 72 81 88 96 99 107 108 132 144 162 176 192 198 214 216 264 288 297 321 324 352 396 428 432 528 576 594 642 648 704 792 856 864 891 963 1,056 1,177 1,188 1,284 1,296 1,584 1,712 1,728 1,782 1,926 2,112 2,354 2,376 2,568 2,592 2,889 3,168 3,424 3,531 3,564 3,852 4,708 4,752 5,136 5,184 5,778 6,336 6,848 7,062 7,128 7,704 8,667 9,416 9,504 10,272 10,593 11,556 14,124 14,256 15,408 17,334 18,832 19,008 20,544 21,186 23,112 28,248 28,512 30,816 31,779 34,668 37,664 42,372 46,224 56,496 57,024 61,632 63,558 69,336 75,328 84,744 92,448 95,337 112,992 127,116 138,672 169,488 184,896 190,674 225,984 254,232 277,344 338,976 381,348 508,464 554,688 677,952 762,696 1,016,928 1,525,392 2,033,856 3,050,784 and 6,101,568, with no remainder.
Since 6,101,568 cannot be divided by just 1 and 6,101,568, it is not a prime number.