1.

Let \[n(>1)\] be a positive integer, then the largest integer \[m\] such that \[({{n}^{m}}+1)\] divides \[(1+n+{{n}^{2}}+.......+{{n}^{127}})\], is [IIT 1995]

A. 32
B. 63
C. 64
D. 127
Answer» D. 127


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