(A) For a base ten positive integer P drawn at random between 10 and 99 inclusively, determine the probability that the first two digits (reading left to right) in the base ten expansion of 2^P is equal to P-1.

(B) For a base ten positive integer P drawn at random between 10 and 99 inclusively, determine the probability that the first two digits (reading left to right) in the base ten expansion of 6^P is equal to P-1.

(In reply to exploration turned up something strange by Jer)

1.  I got the same with log +excel.

2. Please Edit your post, replacing "to" by "no", if you wish

Posted by Ady TZIDON on 2011-03-18 06:59:54