1.

Find the remainder when 11^8 is divided by 7.

Answer»

SOLUTION :`11^8/7=11xx11xx11xx11xx11xx11xx11xx11/7`
=`4xx4xx4xx4xx4xx4xx4xx4/7`
=`16xx16xx16xx16/7`
=`2xx2xx2xx2/7=16/7`
THUS the requried remainder=2


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