5: Modular Arithmetic and Primes Last updated Jul 7, 2021 Save as PDF 4.6: Exercise 5.1: Modular Arithmetic Page ID60320 J. J. P. VeermanPortland State University via PDXOpen: Open Educational Resources ( \newcommand{\kernel}{\mathrm{null}\,}\) 5.1: Modular Arithmetic5.2: Euler's Method5.3: Fermat’s Little Theorem and Primality Testing5.4: Fermet and Mersenne Primes5.5: Division in Zb5.6: Exercises