👨🏻‍💻EASY APPROACH || Python Easy CODE ✅✅
Code\npython3 []\nclass Solution:\n    def isFascinating(self, n: int) -> bool:\n        nStr = str(n) + str(2*n) + str(3*n)\n        if len(nStr) != 9: \n     
# Code\n```python3 []\nclass Solution:\n    def isFascinating(self, n: int) -> bool:\n        nStr = str(n) + str(2*n) + str(3*n)\n        if len(nStr) != 9: \n            return False\n        digits = set(nStr)\n        return digits == set("123456789")\n```
['String', 'Python3']