This tool calculates the Logarithm base 2 of any number x.
Formula
y = Log2(x)
Background
The Logarithm base 2 of x = 2 is 1.
Below is a table of numbers and the Log2() values
| x | Log2(x) |
| 1 | 0 |
| 2 | 1 |
| 4 | 2 |
| 8 | 3 |
| 16 | 4 |
| 32 | 5 |
| 64 | 6 |
| 128 | 7 |
| 256 | 8 |
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