Q: Is 1,128,320 a Prime Number?
A: No, 1,128,320 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 1128320 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 41 43 64 80 82 86 128 160 164 172 205 215 320 328 344 410 430 640 656 688 820 860 1,312 1,376 1,640 1,720 1,763 2,624 2,752 3,280 3,440 3,526 5,248 5,504 6,560 6,880 7,052 8,815 13,120 13,760 14,104 17,630 26,240 27,520 28,208 35,260 56,416 70,520 112,832 141,040 225,664 282,080 564,160 and 1,128,320, with no remainder.
Since 1,128,320 cannot be divided by just 1 and 1,128,320, it is not a prime number.