Q. What is the period of 11 (mod 19)

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Q. What is the period of 17 (mod 19)

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Q. What is the period of 9 (mod 19)

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Q. How many primitive roots does Z<19> have?

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Q. What is the Discrete logarithm to the base 10 (mod 19) for a =7?

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Q. 3^201 mod 11 =

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Q. Find a number x between 0 and 28 with x^85 congruent to 6 mod 29.

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Q. What is the Discrete logarithm to the base 13 (mod 19) for a =13?

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Q. What is the Discrete logarithm to the base 15 (mod 19) for a =9?

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Q. Find a number x between 0 and 28 with x85 congruent to 6 mod 35.

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Q. Find a number ‘a’ between 0 and 72 with ‘a’ congruent to 9794 mod 73.

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Q. What is the Discrete logarithm to the base 2 (mod 19) for a =7?

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Q. ᶲ(41)=

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Q. ᶲ(27)=

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Q. Find a number ‘a’ between 0 and 9 such that ‘a’ is congruent to 7^1000 mod 10.

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Q. ᶲ(440)=

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Q. GCD(n,n+1) = 1 always.

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Q. ᶲ(231)=

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Q. n is prime if and only if n divides (2n – 2).

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Q. Find x for the CRT when x= 2 mod 3; x= 3 mod 5; x = 2 mod 7

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