Q: Is 128,513 a Prime Number?
A: No, 128,513 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 128513 can be evenly divided by 1 7 11 77 1,669 11,683 18,359 and 128,513, with no remainder.
Since 128,513 cannot be divided by just 1 and 128,513, it is not a prime number.