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Transcript
Elementary Number Theory (All themes) 1. 2. 3. 4. 5. 6. 7. 1. 2. 3. 4. 1. 2. 3. 1. 2. 3. 4. 5. 6. 1. 2. 3. 4. 1. 2. 3. 4. 1.. 2. 3. 4. 5. 6. 1. 2. 3. Digits – (Natural) Numbers – Place Value-Overall terms Digits versus Numbers Familiarising with digits and numbers Exposing the place values Introducing factors, multiples, primes,perfect squares & cubes(with notation),odd and even num’ Digits in specific places Alpharithms Problems Summations Sum of the first n natural numbers Sum of the squares of the first n natural numbers Sum of the cubes of the first n natural numbers’ Problems Divisibility Tests Divisibility tests for 2,3,4,5,8,9,10,11,7,13 Co-primes product rule for divisibility Problems Divisibility, LCM, GCD of naturals and extended to integers Factors, Multiples, Divisibility in natural numbers,primes,common factors and multiples, coprimes LCM, GCD of natural numbers Observations on divisibility Extension of Divisibility, LCM, GCD to integers Euclid’s lemma Problems Division Algorithm and it’s Applications Division Algorithm in Z Forms of integers and hence that of squares, cubes etc. Application of Division Algorithm to arrive at Euclidean Algorithm to find GCD Problems Simple Diophantine Equations Meaning of Diophantine Equation Very simplest Diophantine Equation The Simple Diophantine Equation Problems Theorems related to primes Euclid’s lemma for primes Fundamental theorem of arithmetic Primes are infinite. If prime p does not divide a then it divides 𝑎𝑝 - a. (Little Theorem) Prime p divides (𝑝 − 1)! + 1. (Wilson’s theorem) Problems Congruences Meaning of congruence Properties of Congruences Problems