If d= 2^54 and d^d = 2^p what is the value of p?

[Acidclown]

Dear all GMATers this is my first post, so I apologise in advance for any mistakes in the posting.

I've found myself with this question in a test that I have done and I am having difficulties in resolving it.

If d= 2^54 and d^d = 2^p what is the value of p?

A. 64

B. 70

C. 2^54

D. 2^70

E. 128

D

Thanking you all in advance for your help.
Regards
Acid

[Brent@GMATPrepNow]

Dear all GMATers this is my first post, so I apologise in advance for any mistakes in the posting.

I've found myself with this question in a test that I have done and I am having difficulties in resolving it.

If d= 2^54 and d^d = 2^p what is the value of p?

A. 64

B. 70

C. 2^54

D. 2^70

E. 128

D

Thanking you all in advance for your help.
Regards
Acid

If the answer is D, then I believe you miswrote the question.
It should read "If d= 2^64 and d^d = 2^p what is the value of p?"

My solution:

[Acidclown]

Thanks Brent for the answer, apologies for the error.

Need to go over my power laws