[quote=acc100jt;61258]If x is a n-digit whole number, write down the range of values of
defined this way , so assuming that
denotes log to the base 10, we have:
If [I]x[I] is a n-digit whole number, write down the range of values of
lgx. There are 168 digits in 47^100. How many digits are there in
Extend the result in an appropriate manner.
I got the answer, which is 79 digits.
But I'm not sure how to extent the result. How to extend? Anyone can help?