Q: Is 125,563 a Prime Number?
A: No, 125,563 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 125563 can be evenly divided by 1 307 409 and 125,563, with no remainder.
Since 125,563 cannot be divided by just 1 and 125,563, it is not a prime number.