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Let n = 391 = 17x23 (which is not a prime number) a. Using Maple to...

Let n = 391 = 17x23 (which is not a prime number)

a. Using Maple to show that 2n-1 is not congruent to 1 (mod n).   

b. Use Maple Find a non-zero exponent j such that 2j ≡1 (mod n).

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