Q: Is 127,840 a Prime Number?
A: No, 127,840 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 127840 can be evenly divided by 1 2 4 5 8 10 16 17 20 32 34 40 47 68 80 85 94 136 160 170 188 235 272 340 376 470 544 680 752 799 940 1,360 1,504 1,598 1,880 2,720 3,196 3,760 3,995 6,392 7,520 7,990 12,784 15,980 25,568 31,960 63,920 and 127,840, with no remainder.
Since 127,840 cannot be divided by just 1 and 127,840, it is not a prime number.