------
## 最终结论
```python
from math import gcd
from functools import reduce

def isGoodArray(nums):
    return reduce(gcd, nums) == 1

# Example usage:
print(isGoodArray([12,5,7,23]))  # Output: True
print(isGoodArray([29,6,10]))    # Output: True
print(isGoodArray([3,6]))        # Output: False
```