Q: Is 128,435 a Prime Number?
A: No, 128,435 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 128435 can be evenly divided by 1 5 17 85 1,511 7,555 25,687 and 128,435, with no remainder.
Since 128,435 cannot be divided by just 1 and 128,435, it is not a prime number.