Q: Is 128,340 a Prime Number?
A: No, 128,340 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 128340 can be evenly divided by 1 2 3 4 5 6 9 10 12 15 18 20 23 30 31 36 45 46 60 62 69 90 92 93 115 124 138 155 180 186 207 230 276 279 310 345 372 414 460 465 558 620 690 713 828 930 1,035 1,116 1,380 1,395 1,426 1,860 2,070 2,139 2,790 2,852 3,565 4,140 4,278 5,580 6,417 7,130 8,556 10,695 12,834 14,260 21,390 25,668 32,085 42,780 64,170 and 128,340, with no remainder.
Since 128,340 cannot be divided by just 1 and 128,340, it is not a prime number.