Q: Is 258,581 a Prime Number?
A: Yes, 258,581 is a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 258581 can be evenly divided by 1 and 258,581, with no remainder.
Since 258,581 can be divided by just 1 and 258,581, it is a prime number.