Distinct multiples - PowerPoint PPT Presentation

15-251

15-251. Great Theoretical Ideas in Computer Science. Number Theory and Modular Arithmetic. Lecture 13 (October 8, 2009). p-1. 1.  p. Greatest Common Divisor: GCD(x,y) = greatest k ≥ 1 s.t. k|x and k|y. Least Common Multiple: LCM(x,y) = smallest k ≥ 1 s.t. x|k and y|k. Fact:

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15-251

15-251. Some. Great Theoretical Ideas in Computer Science. for. Modular Arithmetic and the RSA Cryptosystem. Lecture 17 (March 18, 2008). p-1. 1.  p. Public Key Cryptography. -----BEGIN PGP PRIVATE KEY BLOCK----- Version: PGP 8.1 - not licensed for commercial use: www.pgp.com

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