What is the greatest prime factor of 2^100 - 2^96?
A. 2
B. 3
C. 5
D. 7
E. 11
CAN ANYONE HELP?
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dunkin77 wrote:Sorry, I think I wrote it wrong.
It's 2^100 - 2^96 .
.. so that wuld be 2^96(2^4-1) = 2^96*15 .. so the prime factors fro this number are 2,3,5 ... and the highest is 5 ..