Q: Is 128,888 a Prime Number?
A: No, 128,888 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 128888 can be evenly divided by 1 2 4 8 16,111 32,222 64,444 and 128,888, with no remainder.
Since 128,888 cannot be divided by just 1 and 128,888, it is not a prime number.