Q: Is 128,518 a Prime Number?
A: No, 128,518 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 128518 can be evenly divided by 1 2 13 26 4,943 9,886 64,259 and 128,518, with no remainder.
Since 128,518 cannot be divided by just 1 and 128,518, it is not a prime number.