A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 9119376 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 83 84 109 112 126 144 166 168 218 249 252 327 332 336 436 498 504 581 654 664 747 763 872 981 996 1,008 1,162 1,308 1,328 1,494 1,526 1,743 1,744 1,962 1,992 2,289 2,324 2,616 2,988 3,052 3,486 3,924 3,984 4,578 4,648 5,229 5,232 5,976 6,104 6,867 6,972 7,848 9,047 9,156 9,296 10,458 11,952 12,208 13,734 13,944 15,696 18,094 18,312 20,916 27,141 27,468 27,888 36,188 36,624 41,832 54,282 54,936 63,329 72,376 81,423 83,664 108,564 109,872 126,658 144,752 162,846 189,987 217,128 253,316 325,692 379,974 434,256 506,632 569,961 651,384 759,948 1,013,264 1,139,922 1,302,768 1,519,896 2,279,844 3,039,792 4,559,688 and 9,119,376, with no remainder.
Since 9,119,376 cannot be divided by just 1 and 9,119,376, it is not a prime number.