Q: Is 581 a Prime Number?
A: No, 581 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 581 can be evenly divided by 1 7 83 and 581, with no remainder.
Since 581 cannot be divided by just 1 and 581, it is not a prime number.