Q: Is 128,608 a Prime Number?
A: No, 128,608 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 128608 can be evenly divided by 1 2 4 8 16 32 4,019 8,038 16,076 32,152 64,304 and 128,608, with no remainder.
Since 128,608 cannot be divided by just 1 and 128,608, it is not a prime number.