Base 15 logarithm of 1250000?| Log15 Calculator

Logarithm Calculator

Please enter the base (b) and a positive number (n) to calculate logbn:
The base  log of  = ?   
Result:
The base 15 logarithm of 1250000 is 5.1840450016638 or log151250000 = 5.1840450016638.

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Notes:
i) e and pi are accepted values.
ii) 1.2 x 103 should be entered as 1.2e3 and
iii) 1.2 x 10-3 as 1.2e-3

Here is the answer to questions like: Base 15 logarithm of 1250000? or what is the base 15 log of 1250000?

Use our | Log15 calculator to find the logarithm of any positive number for any number base you enter.

What is logarithm?

A logarithm is the power to which a number must be raised in order to get some other number. In other words, the logarithm tells us how many of one number should be multiplied to get another number.

For example:

  • The base 2 logarithm of 4 is 2, because 2 raised to the power of 2 is 4:
  • log3 9 = 2, because 32 = 9

This is an example of a base-3 logarithm. We call it a base-3 logarithm because 3 is the number that is raised to a power.

The most common logarithms are natural logarithms and base 10 logarithms. There are special notations for them:

  • A base 10 log is written simply log.
  • A natural logarithm is written simply as ln.

So, the notation log alone means base ten logarithm and notation ln, means natural log.

Basic Log Rules

  • logb(x·y) = logb(x) + logb(y)
  • logbx/y) = logb(x) - logb(y)
  • logb(xy) = y·logb(x)
  • logb(x) = logk(x)/logk(b)

What is logarithm an how it works

If you want to learn the basic concept of logarithms and its basics operation you should try to whatch this simple video: Logarithms Explained and Rules of Logarithms

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