Good Array
Here\u2019s a concise version for the problem:\n\n### Intuition\nTo determine if a list of integers nums has a GCD of 1, we need to check if all numbers in the 
Here\u2019s a concise version for the problem:\n\n### Intuition\nTo determine if a list of integers `nums` has a GCD of 1, we need to check if all numbers in the list are coprime. This means their only common divisor is 1.\n\n### Approach\nUse the `reduce` function with `gcd` to compute the GCD of all numbers in the list. Check if the final GCD equals 1.\n\n### Complexity\n- **Time complexity:** \\(O(n \\log(\\text{max}(nums)))\\), where \\(n\\) is the number of elements in `nums`.\n- **Space complexity:** \\(O(1)\\).\n\n### Code\n```python\nfrom functools import reduce\nfrom math import gcd\nfrom typing import List\n\nclass Solution:\n    def isGoodArray(self, nums: List[int]) -> bool:\n        return reduce(gcd, nums) == 1\n```\n\nThis code efficiently determines if the numbers in `nums` are pairwise coprime.
['Python3']