Number System, Odd-Even, Prime Number | CSAT for PRELIMS 2026 | Drishti IAS English

For admission to the GS Studio Foundation Course, click on the link: English Medium: https://drishti.xyz/GS-Studio-Foundat... Hinglish Medium: https://drishti.xyz/gs-studio-foundat... Hindi Medium: https://drishti.xyz/GS-Studio-Foundat... For more information about the GS Studio Foundation Course or counselling, click on the link: https://drishti.xyz/GS-Studio-Foundat... ************************************************************************** Prepare for UPSC Prelims 2026 with our CSAT SIMPLIFIED FOR PRELIMS 2026 series. In this episode (Ep.01), we dive deep into the foundational concepts of the Number System, focusing on key topics such as Odd-Even numbers and Prime Numbers, which are essential for cracking the CSAT section. We also cover UPSC Previous Year Questions related to these topics, helping you practice and understand the exam pattern. In this session, Mr. Imtiyaz Ahmed, Expert Faculty at Drishti IAS, covers: ✔ Number System – Key concepts and techniques for solving questions. ✔ Odd-Even Numbers – Understanding their properties and how to solve related problems. ✔ Prime Numbers – Definition, properties, and their importance in CSAT. This lecture is part of the CSAT SIMPLIFIED FOR PRELIMS 2026 series, designed to provide clear explanations, simplify complex topics, and incorporate relevant PYQs to ensure thorough preparation for the CSAT paper. ************************************************************************** 𝐋𝐢𝐧𝐤𝐬 𝐨𝐟 𝐘𝐨𝐮𝐓𝐮𝐛𝐞 Important 𝐏𝐥𝐚𝐲𝐥𝐢𝐬𝐭𝐬- 1. Latest Update: https://drishti.xyz/Latest-Update 2. NCERT Foundation Series: https://drishti.xyz/NCERT-Foundation-... 3. How to Prepare Optional: https://drishti.xyz/How-to-Prepare-Op... 4. Optional Subject Demo Classes: https://drishti.xyz/Optional-Subject-... 5. UPSC Mock Interview 2024: https://drishti.xyz/UPSC-2024-Mock-In... 6. IAS Toppers Talk 2024: https://drishti.xyz/Toppers-Talk-2024... 7. Voices of the Revolution: https://drishti.xyz/Voices-of-the-rev... ************************************************************************* Our Key Courses: 1. GS Foundation Courses: https://drishti.xyz/GS-foundation-Onl... 2. GS Studio Foundation Course (Hindi): https://drishti.xyz/GS-Studio-Foundat... 3. GS Studio Foundation Course (Hinglish): https://drishti.xyz/gs-studio-foundat... 4. GS Studio Foundation Course (English): https://drishti.xyz/GS-Studio-Foundat... 5. NCERT Online Courses: https://drishti.xyz/NCERT-Online-Courses 6. UPSC Optional Subjects Online Courses: https://drishti.xyz/UPSC-Optional-Sub... 7.IAS Prelims 2026 Online Courses: https://drishti.xyz/IAS-Prelims-2026-... 8. IAS Mains 2026 Online Courses: https://drishti.xyz/IAS-Mains-2026-On... 9. Current Affairs (Prelims + Mains) IAS 2026 Online Courses: https://drishti.xyz/UPSC-Current-Affa... 10. UPSC Prelims 2026 Test Series: https://drishti.xyz/IAS-Prelims-2026-... 11. UPSC Mains 2026 Test Series: https://drishti.xyz/IAS-Mains-2026-Te... 12. EPFO Online Course: https://drishti.xyz/UPSC-EPFO-Online-... 13. CAPF Online Courses: https://drishti.xyz/CAPF-Online-Courses ************************************************************************* 𝐃𝐨𝐰𝐧𝐥𝐨𝐚𝐝 𝐃𝐫𝐢𝐬𝐡𝐭𝐢 𝐋𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐀𝐩𝐩 𝐧𝐨𝐰 : IOS: https://drishti.xyz/DLA-IOS Android : https://drishti.xyz/DLA-Android Windows : https://drishti.xyz/DLA-Windows =̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵=̵ 𝐅𝐨𝐥𝐥𝐨𝐰 𝐮𝐬 𝐨𝐧 𝐬𝐨𝐜𝐢𝐚𝐥 𝐦𝐞𝐝𝐢𝐚 : https://drishti.xyz/SocialMedia-YT #CSAT #DrishtiIASEnglish #UPSCPrelims2026 #NumberSystem #OddEven #PrimeNumbers #DrishtiIAS #CSATPreparation #CSAT2026 #UPSC #MathsForUPSC #CSATMaths #UPSCPrelims #UPSC #PYQ #UPSCPreviousYearQuestions #UPSCPreparation | #CivilServicesExam | #IASPreparation | #UPSC2026 | #UPSCMotivation | #CurrentAffairs | #upscmains