If\[{{2}^{n}}-1\]is a prime number , then \[{{2}^{n}}^{-1}\left( {{2}^{n}}-1 \right)\] is_____

If\[{{2}^{n}}-1\]is a prime number , then \[{{2}^{n}}^{-1}\left( {{2}^

1.	If\[{{2}^{n}}-1\]is a prime number , then \[{{2}^{n}}^{-1}\left( {{2}^{n}}-1 \right)\] is_____
A.	a prime number
B.	a super number
C.	a perfect number
D.	an odd number
E.	None of these
Answer» D. an odd number

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If\[{{2}^{n}}-1\]is a prime number , then \[{{2}^{n}}^{-1}\left( {{2}^{n}}-1 \right)\] is_____

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