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Question

76n66n where n is an integer > 0 is divisible by

A
13
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B
127
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C
559
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D
All of these
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Solution

The correct option is C All of these
For n=1
76n66n=7666
=(73)2(63)2
=(7363)(73+63)
=(343216)×(343+216)
=127×559
=127×13×43
Clearly it is divisible by 127,13 as well as 559.

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