In mathematics, the logarithm of a number is the exponent by which another fixed value, the base, must be raised to produce that …

Logarithm rules and properties Logarithm Rules The base b logarithm of a number is the exponent that we need to raise the base in …

This free log calculator solves for the unknown portions of a logarithmic expression using base e, 2, 10, or any other desired base.

In its simplest form, a logarithm answers the question: How many of one number multiply together to make another number?

A complete reference of logarithm rules and properties. Covers the three main log laws (product, quotient, power), change of base, …

A graph of the common logarithm of numbers from 0.1 to 100 In mathematics, the common logarithm (aka "standard logarithm") is …

May 16, 2007 · An introduction to logarithms About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, …

5 days ago · The meaning of LOG is a usually bulky piece or length of a cut or fallen tree; especially : a length of a tree trunk ready …

Jul 24, 2026 · Logarithm, the exponent or power to which a base must be raised to yield a given number.

Sal explains what logarithms are and gives a few examples of finding logarithms.