------
## 最终结论
```python
def prime_length(string):
    def is_prime(num):
        if num <= 1:
            return False
        for i in range(2, int(num**0.5) + 1):
            if num % i == 0:
                return False
        return True
    
    length = len(string)
    return is_prime(length)
```