Q: Is 843,840 a Prime Number?
A: No, 843,840 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 843840 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 144 160 180 192 240 288 293 320 360 480 576 586 720 879 960 1,172 1,440 1,465 1,758 2,344 2,637 2,880 2,930 3,516 4,395 4,688 5,274 5,860 7,032 8,790 9,376 10,548 11,720 13,185 14,064 17,580 18,752 21,096 23,440 26,370 28,128 35,160 42,192 46,880 52,740 56,256 70,320 84,384 93,760 105,480 140,640 168,768 210,960 281,280 421,920 and 843,840, with no remainder.
Since 843,840 cannot be divided by just 1 and 843,840, it is not a prime number.