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CUET
General Test
Quantitative Reasoning
Algebra
What is the value of $(2^2 +1) (2^4+1)(2^8+1)(2^{16}+1) ........(2^{128} + 1 ) ?$
$\frac{2^{256}-1}{2}$
$\frac{2^{256}-1}{3}$
$2^{256}-1$
$\frac{2^{256}-1}{4}$