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Find a number x between 0 and 28 with x^85 congruent to 6 mod 35.

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in Cryptograph & Network Security by (60.1k points)
Find a number x between 0 and 28 with x^85 congruent to 6 mod 35.

(a) 6

(b) 32

(c) 8

(d) 28

The question was posed to me in a national level competition.

My question is based upon Number Theory topic in section More Number Theory of Cryptograph & Network Security

1 Answer

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Best answer
Right option is (a) 6

Easy explanation: Use Eulers Theorum.

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