# Thread: Calculate number of digits in large number

1. ## Calculate number of digits in large number

Unsure how to calculate the number of digits in the decimal expansion of the large number 4^4^4^4.

2. ## Re: Calculate number of digits in large number

I posted a question similar to this. See my post for a similar solution. (See applied use of logarithms; In the PreCalculus Forum)
how much paper would I need to write out this number?? (applied use of logarithms)