Then why dont u do the problem the way mudit has sugested u.
on taking the log of the expression on gets 1024log 2 - 108 log 3
on taking log 2=.3 and log 3=.4771 as mudit sugested one gets the final log
values as log 251.6732 which means that the number has 252 digits if i amnt
mistaken or if i am wrong u could use the method that mudit sugested.