Sunday, February 28, 2016

Question of the day (28/02/2016)

What will be the remainder when 3^171 (3 to the power 171) is divided by 80?

Answer:

The answer is 27. 

Explanation : 3^171= (3^4)^42 * 3^3 = (80+1)^42 *27 . So the remainder when it is divided by 80 will be 27.

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