Why it is showing time limit exceeded = 1.01seconds?
if it is showing time taken: 0.01 seconds while running.
problem = FLOW016 Problem - CodeChef
solution = CodeChef: Practical coding for everyone
The time complexity of your code is O(N) per test case, where N spans all possible values for the LCM. Might I suggest you look into a more efficient algorithm to calculate the GCD?
Also note that once you have the GCD, the LCM can trivially be calculated using the formula LCM = A * B / GCD.