Tyra

2020-12-25

Determine the number of solutions of the congruence ${x}^{4}\equiv 61(mod\text{}117)$

Pohanginah

Skilled2020-12-26Added 96 answers

Step 1

Given:

As

and

we deduce the congruence

Step 2

Similarity

and

So, the congruence

hence, the number of solutions of the congruence

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