Find the ELUSIVE n digit number EXPLICITLY! | Number Theory Proof!

We explain how to EXPLICITLY find an n digit number that is both (i) divisible by 5^n and (ii) consists only of the digits 2, 4, 5, 6, 8 The proof of the existence of this number is constructive in the sense that it gives a method to actually find this number for each positive integer n. We start by looking at examples for small values of n, and then proceed to a general approach based on simple ideas in modular arithmetic. The video is designed for people interested in number theory, olympiad math, proof-based math, and interesting mathematical challenges. If you enjoy this video, I would love if you could please like ✅ , subscribe 🎉, and share ⏩ with students, classmates, friends and family - it means so much to help support me in my goal of creating elite infinite free accessible math education worldwide! 😊 If you would like to support my channel beyond this (which of course would mean so much to me 🤗), please check out my "Patreon" page! The contributions here make a world of difference to helping me free up time to produce as much math content as possible (I currently do everything on my own), and there are also exclusive perks available when you signup (e.g., exclusive access to a private Discord server to chat and discuss math with me and other members, insider knowledge on my future YouTube content creation, priority replies to YouTube comments, public acknowledgements as a valued sponsor, a personalized thank you message etc.)! 😊 Become a Patreon Member 🤩:   / mathmasterywithamitesh   A HUGE thank you SO much to Alex and Stephan for their continued support of the channel as Ruby Members, and Nathan for their continued support of the channel as a Gold Member!! 🎊 My Channel Membership 🥇:    / @mathmasterywithamitesh   A HUGE thank you SO much to Aman, Julio, Stephan, Rob, and Bernard for their continued support of the channel as Silver Members!! 🎉 You can also follow me on Instagram!   / math_mastery_with_amitesh