remainder

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1057
Ketan Chandak ·

note that 201120112011 is divisible by 7...
so the given expression can be written as
201120112011 x 102005+201120112011 x 101999+201120112011 x 101993..........+201120112011 x 104+2011...

all the terms in the given expression are divisible by 7 except the last term....
so remainder is 2011 mod 7 which is 2...

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