Question: A. (5 Points) Using Euclidean algorithm, determine GCD (130,300) B. (5 Points) Find (720), the Euler's Phi function. (Note that 1,2,3,5,7, etc. are the primes)

A. (5 Points) Using Euclidean algorithm, determine GCD (130,300) B. (5 Points) Find (720), the Euler's Phi function. (Note that 1,2,3,5,7, etc. are the primes) C. (5 points) Find the multiplicative inverse of 5 in GF(19) domain using Fermat's Little theorem. D. (5 points) Using Euler's theorem, find the following exponential: 5300mod31. Show how you have employed Euler's theorem here
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