Check Prime Number in C Programming | Optimized Logic (Marathi)

In this video, we write a C program to check whether a user-entered number is a Prime Number or not. 💻 We explain a simple and efficient logic: Loop Range: Instead of checking from 1 to N, we check from 2 to N/2 (Half Range) to save time. Logic: If the number is divisible by any number in this range, the factor count increases. Final Check: If the count == 0 (meaning no factors found between 2 and n/2), then it is a Prime Number! 📝 Topics Covered: ✅ Prime Number definition. ✅ Logic building: n % i == 0. ✅ Why we start the loop from i = 2 and end at n/2. ✅ Using a count variable to track factors. ✅ Dry run with examples like 7 (Prime) and 9 (Not Prime). 👨‍💻 This video is perfect for: Beginners learning Prime Number logic. Students preparing for "Write a program to check Prime" exam questions. BCS/BCA/Engineering practical preparations. 🚀 Why learn from NR Classes? We focus on Logic Building, not just syntax. Our goal is to make you confident in writing your own programs. 📞 Join Our Offline/Online Classes: Want to learn personally from experts? Call/WhatsApp: 9730381255 🌐 Connect with us: Instagram: https://www.instagram.com/logic_overflow/ (Daily Coding Quizzes & Reels) Facebook: https://www.facebook.com/nrclasses/ Location: Pune, Maharashtra 🔔 Don't forget to SUBSCRIBE and hit the Bell Icon so you never miss a new logic-building video! #CProgramming #PrimeNumber #PrimeLogic #MarathiCoding #NRClasses #LogicBuilding #Engineering #BCS #BCA