3.20 – Count Factors, Prime/Composite & Perfect Number | do…while Loop | C Programming – New Series

Описание: Welcome to C Programming – Complete Course (New Series) by Burle Sharma.

In this class (3.20), we continue practicing do…while loop by solving three important number-based programs step by step.

As followed in earlier classes, the same structured learning approach is used:

👉 Write the question
👉 Write the expected output
👉 Write the program using do…while loop
👉 Perform the dry run
👉 Execute the program and verify the output

In this video, we solve the following programs:

✔ Accept a number and count the number of factors
✔ Accept a number and check whether it is Prime or Composite
✔ Accept a number and check whether it is a Perfect number or not

📌 Concepts Explained in This Video

🔹 Counting factors using loop logic
🔹 Using modulus operator (%) to check divisibility
🔹 Applying counting technique for prime number logic
🔹 Understanding the concept of perfect numbers
🔹 Loop execution using do…while structure

Students clearly understand:

🟢 How to count factors using loop and conditional statements
🟢 How factor count determines prime or composite numbers
🟢 How the sum of factors is used to identify perfect numbers
🟢 How do…while loop helps execute logic systematically

🎓 What You’ll Learn in This Video

🟢 Counting the number of factors using loops
🟢 Identifying prime and composite numbers logically
🟢 Understanding perfect number concept
🟢 Applying modulus operator in number problems
🟢 Writing structured programs using do…while loop
🟢 Performing proper dry run for better clarity

🧠 Key Learning Point

Programs like prime number, factor counting, and perfect number help students build strong logical thinking skills in programming.

Practicing these programs using for loop, while loop, and do…while loop gives deeper understanding of loop behavior.

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