Q: Is 128,499 a Prime Number?
A: No, 128,499 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 128499 can be evenly divided by 1 3 7 21 29 87 203 211 609 633 1,477 4,431 6,119 18,357 42,833 and 128,499, with no remainder.
Since 128,499 cannot be divided by just 1 and 128,499, it is not a prime number.