The greatest positive integer k,

Question:

The greatest positive integer k, fr which $49 \mathrm{k}+1$ is a factor of the sum

$49^{125}+49^{124}+\ldots \quad 49^{2}+49+1$, is $:$

  1. 32

  2. 60

  3. 63

  4. 65


Correct Option: , 3

Solution:

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