A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2314368 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 41 42 48 49 56 63 64 72 82 84 96 98 112 123 126 128 144 147 164 168 192 196 224 246 252 287 288 294 328 336 369 384 392 441 448 492 504 574 576 588 656 672 738 784 861 882 896 984 1,008 1,148 1,152 1,176 1,312 1,344 1,476 1,568 1,722 1,764 1,968 2,009 2,016 2,296 2,352 2,583 2,624 2,688 2,952 3,136 3,444 3,528 3,936 4,018 4,032 4,592 4,704 5,166 5,248 5,904 6,027 6,272 6,888 7,056 7,872 8,036 8,064 9,184 9,408 10,332 11,808 12,054 13,776 14,112 15,744 16,072 18,081 18,368 18,816 20,664 23,616 24,108 27,552 28,224 32,144 36,162 36,736 41,328 47,232 48,216 55,104 56,448 64,288 72,324 82,656 96,432 110,208 128,576 144,648 165,312 192,864 257,152 289,296 330,624 385,728 578,592 771,456 1,157,184 and 2,314,368, with no remainder.
Since 2,314,368 cannot be divided by just 1 and 2,314,368, it is not a prime number.