Q: Is 128,838 a Prime Number?
A: No, 128,838 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 128838 can be evenly divided by 1 2 3 6 109 197 218 327 394 591 654 1,182 21,473 42,946 64,419 and 128,838, with no remainder.
Since 128,838 cannot be divided by just 1 and 128,838, it is not a prime number.