\( 2^{3 n}-7 n-1 \) is divisible by \( \mathrm{P} \) a) 64 b) 36 c) 49

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\( 2^{3 n}-7 n-1 \) is divisible by
\( \mathrm{P} \)
a) 64
b) 36
c) 49
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