A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 468160 can be evenly divided by 1 2 4 5 7 8 10 11 14 16 19 20 22 28 32 35 38 40 44 55 56 64 70 76 77 80 88 95 110 112 133 140 152 154 160 176 190 209 220 224 266 280 304 308 320 352 380 385 418 440 448 532 560 608 616 665 704 760 770 836 880 1,045 1,064 1,120 1,216 1,232 1,330 1,463 1,520 1,540 1,672 1,760 2,090 2,128 2,240 2,464 2,660 2,926 3,040 3,080 3,344 3,520 4,180 4,256 4,928 5,320 5,852 6,080 6,160 6,688 7,315 8,360 8,512 10,640 11,704 12,320 13,376 14,630 16,720 21,280 23,408 24,640 29,260 33,440 42,560 46,816 58,520 66,880 93,632 117,040 234,080 and 468,160, with no remainder.
Since 468,160 cannot be divided by just 1 and 468,160, it is not a prime number.