Basic Logarithms
Logarithms (Not Base 10)
Logarithms
100

Log10(2)

0.3

100

Log2(8) =

3

100

Log(1000)

3

200

Log10(3)

0.48

200

Log4(16)=

2

200

Log(209,765)

5.3

300

Log10(5)

0.7

300

Logx(25)=2

x=5

300

Log(623,000,541)

8.78

400

Log10(8)

0.9

400

Log8(8)=x

x=1

400

Log(712)

2.85

500

Log10(7)

0.85

500

Log2(x) = 6

x=64

500

Log(0.00000021)

-6.7