Base-dependent integer sequences
In number theory, reversing the digits of a number n sometimes produces another number m that is divisible by n.This happens trivially when n is a palindromic number; the nontrivial reverse divisors are 1089, 2178, 10989, 21978, 109989, 219978, 1099989, 2199978, ... (sequence in the OEIS). For instance, 1089 × 9 = 9801, the reversal of 1089, and 2178 × 4 = 8712, the reversal of 2178.The multiples produced by reversing these numbers, such as 9801 or 8712, are sometimes called palintiples. (Wikipedia).
This video covers the divisibility rules for 2,3,4,5,6,8,9,and 10. http://mathispower4u.yolasite.com/
From playlist Factors, Prime Factors, and Least Common Factors
Ex 2: Apply Divisibility Rules to a 4 Digit Number
This video explains how to apply the divisibility rules for 2, 3, 4, 5, 6, 8, 9, and 10. http://mathispower4u.com
From playlist Factors, Prime Factors, and Least Common Factors
Ex 1: Apply Divisibility Rules to a 4 Digit Number
This video explains how to apply the divisibility rules for 2, 3, 4, 5, 6, 8, 9, and 10. http://mathispower4u.com
From playlist Factors, Prime Factors, and Least Common Factors
#shorts This video reviews the divisibility rule for 3.
From playlist Math Shorts
Number Theory | Divisibility Basics
We present some basics of divisibility from elementary number theory.
From playlist Divisibility and the Euclidean Algorithm
A Maths Puzzle: Find the nine digit number
Find a nine digit numbers, using the numbers 1 to 9, and using each number once without repeats, such that; the first digit is a number divisible by 1. The first two digits is a number divisible by 2; The first three digits is a number divisible by 3 and so on until we get a nine digit num
From playlist My Maths Videos
Theory of Computation 1. Finite State Machines ADUni
From playlist [Shai Simonson]Theory of Computation
From playlist L. Number Theory
Proving a Negative Times a Negative Is a Positive with the Distributive Property
When you're multiplying integers and especially when you begin multiplying negative numbers, one of the first questions that comes up for students is why does a negative times a negative equal a positive? There are lots of ways to show it, and a couple of my favorites are: + Multiplicatio
From playlist Math Mini
Python Programming Practice: LeetCode #9 -- Palindrome Number
In this episode of Python Programming Practice, we tackle LeetCode #9 -- Palindrome Number. Link to the problem here: https://leetcode.com/problems/palindrome-number/ If you don't know Python, you can learn the basics of Python for data analysis using this guide I created on Kaggle (Data
From playlist Python Programming Practice
Building cells by Maithreyi Narasimha
Program ICTP - ICTS Winter School on Quantitative Systems Biology ORGANIZERS: Buzz Baum, Guillaume Salbreux, Stefano Di Talia and Vijaykumar Krishnamurthy DATE: 03 December 2019 to 20 December 2019 VENUE: Ramanujan Lecture Hall, ICTS Bangalore The development of an organism from a sin
From playlist Winter School on Quantitative Systems Biology: Quantitative Approaches in Ecosystem Ecology 2020
Divisibility Tricks - Numberphile
Featuring Tony Padilla... Check out Brilliant (and get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Extra footage and trick from this interview: https://youtu.be/ZWeUNUCf2rI Card trick and shuffling videos on
From playlist Cards and Shuffling on Numberphile
Basic slide rule theory and use (Part 5): Chaining and S/T/L scales
The fifth (and final) of a series of videos explaining the basic slide rule. This video explains how to chain operations and how to use scales S, T, and L. Basic slide rule playlist: https://www.youtube.com/playlist?list=PL_qcL_RF-ZyvJYtIr9NRXJX958d6BgdbN All my slide rule videos: https
From playlist Basic slide rule theory and use
Basic slide rule theory and use (Part 2): CI scale
The second of a series of videos explaining the basic slide rule. This video explains the CI scale and its basic uses. Basic slide rule playlist: https://www.youtube.com/playlist?list=PL_qcL_RF-ZyvJYtIr9NRXJX958d6BgdbN All my slide rule videos: https://www.youtube.com/playlist?list=PL_q
From playlist Basic slide rule theory and use
Fractions of an Amount (And Reverse Fractions!) | Grade 5 Crossover Playlist | GCSE Maths Tutor
Join this channel to get access to perks: https://www.youtube.com/channel/UCStPzCGyt5tlwdpDXffobxA/join A video revising the techniques and strategies for completing fraction of an amount calculations (Higher and Foundation). This video is part of the Fractions, Decimals and Percentages
From playlist GCSE Maths Videos
Math for Liberal Studies - Lecture 3.8.1 Affine and Multiplicative Ciphers
This is the first video lecture for Math for Liberal Studies, Section 3.8: More Modular Arithmetic and Public-Key Cryptography. In this lecture, I talk about how we can use multiplication in modular arithmetic to construct new ciphers. I also discuss the difficulty in finding the decryptio
From playlist Math for Liberal Studies Lectures
05 Scientific Notation Conversions Worked Example
in this video, we answer a student question relating to negative exponents in scientific notation
From playlist Middle School - Worked Examples
Lecture 10 - Arithmetic and Algebra - Problem Discussion
This is Lecture 10 of the COMP300E (Programming Challenges) course taught by Professor Steven Skiena [http://www.cs.sunysb.edu/~skiena/] at Hong Kong University of Science and Technology in 2009. The lecture slides are available at: http://www.algorithm.cs.sunysb.edu/programmingchallenges
From playlist COMP300E - Programming Challenges - 2009 HKUST
Ex: Dividing Signed Decimals (Negative Divided by Positive)
This video explains how to divide signed decimals. http://mathispower4u.com
From playlist Multiplying and Dividing with Decimals