Q: Is 891,120 a Prime Number?
A: No, 891,120 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 891120 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 47 48 60 79 80 94 120 141 158 188 235 237 240 282 316 376 395 470 474 564 632 705 752 790 940 948 1,128 1,185 1,264 1,410 1,580 1,880 1,896 2,256 2,370 2,820 3,160 3,713 3,760 3,792 4,740 5,640 6,320 7,426 9,480 11,139 11,280 14,852 18,565 18,960 22,278 29,704 37,130 44,556 55,695 59,408 74,260 89,112 111,390 148,520 178,224 222,780 297,040 445,560 and 891,120, with no remainder.
Since 891,120 cannot be divided by just 1 and 891,120, it is not a prime number.