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Figure 8 shows a Python program that is being developed - AQA - GCSE Computer Science - Question 17 - 2021 - Paper 1
Question 17
Figure 8 shows a Python program that is being developed. It is supposed to calculate and display the highest common factor of two numbers entered by the user. The ... show full transcript
Worked Solution & Example Answer:Figure 8 shows a Python program that is being developed - AQA - GCSE Computer Science - Question 17 - 2021 - Paper 1
Step 1
State the output from the program in Figure 8 when the user enters the numbers 4 and 4.
Answer
When the user enters the numbers 4 and 4, the program will output 1. This is because the while loop checks for the condition count < num1, and since count is initialized to 1, it only correctly calculates the highest common factor for values below the minimum of 4.
Step 2
Step 3
Describe how the line of code identified in your answer to Question 17.2 should be changed so that the program in Figure 8 will work correctly.
Answer
To fix the program, line 6 should be modified to ensure that the count variable is checked against both numbers correctly. The modified line should be:
while count <= num1:
This change allows the loop to run up to the value of the numbers entered, ensuring that the highest common factor can be correctly determined.