4 log 1614 Explanation: Remember that displaystyle=This free log calculator solves for the unknown portions of a logarithmic expression using base e, 2, 10, or any other desired base.^{} : displaystyle{_{}{left(This free log calculator solves for the unknown portions of a logarithmic expression using base e, 2, 10, or any other desired base.rht)}}={_{}{left(^{{frac{55kbet-74.png}{}}}rht)}}=frac{55kbet-74.png}{}This free log calculator solves for the unknown portions of a logarithmic expression using base e, 2, 10, or any other desired base.