Home » Logarithms of 90 » Log90 (21)

Log 90 (21)

Log 90 (21) is the logarithm of 21 to the base 90:

Calculator

log

Result:
Simply the Best Logarithm Calculator! Click To Tweet As you can see in our log calculator, log90 (21) = 0.676589158381.

Calculate Log Base 90 of 21

To solve the equation log 90 (21) = x carry out the following steps.
  1. Apply the change of base rule:
    log a (x) = log b (x) / log b (a)
    With b = 10:
    log a (x) = log(x) / log(a)
  2. Substitute the variables:
    With x = 21, a = 90:
    log 90 (21) = log(21) / log(90)
  3. Evaluate the term:
    log(21) / log(90)
    = 1.39794000867204 / 1.92427928606188
    = 0.676589158381
    = Logarithm of 21 with base 90
Here’s the logarithm of 90 to the base 21.

Additional Information

  • From the definition of logarithm b y = x ⇔ y = log b(x) follows that 90 0.676589158381 = 21
  • 90 0.676589158381 = 21 is the exponential form of log90 (21)
  • 90 is the logarithm base of log90 (21)
  • 21 is the argument of log90 (21)
  • 0.676589158381 is the exponent or power of 90 0.676589158381 = 21
BTW: Logarithmic equations have many uses in various contexts in science.

Frequently searched terms on our site include:

FAQs

What is the value of log90 21?

Log90 (21) = 0.676589158381.

How do you find the value of log 9021?

Carry out the change of base logarithm operation.

What does log 90 21 mean?

It means the logarithm of 21 with base 90.

How do you solve log base 90 21?

Apply the change of base rule, substitute the variables, and evaluate the term.

What is the log base 90 of 21?

The value is 0.676589158381.

How do you write log 90 21 in exponential form?

In exponential form is 90 0.676589158381 = 21.

What is log90 (21) equal to?

log base 90 of 21 = 0.676589158381.
For further questions about the logarithm equation, common logarithms, the exponential function or the exponential equation fill in the form at the bottom.

Summary

In conclusion, log base 90 of 21 = 0.676589158381.

You now know everything about the logarithm with base 90, argument 21 and exponent 0.676589158381.
Further information, particularly about the binary logarithm, natural logarithm and decadic logarithm can be located in our article logarithm.

Besides the types of logarithms, there, we also shed a light on the terms on the properties of logarithms and the logarithm function, just to name a few.
Thanks for visiting Log90 (21).

Table

Our quick conversion table is easy to use:
log 90(x) Value
log 90(20.5)=0.67123392041661
log 90(20.51)=0.67134229965388
log 90(20.52)=0.67145062606188
log 90(20.53)=0.6715588996921
log 90(20.54)=0.67166712059592
log 90(20.55)=0.67177528882469
log 90(20.56)=0.67188340442965
log 90(20.57)=0.67199146746199
log 90(20.58)=0.67209947797279
log 90(20.59)=0.67220743601311
log 90(20.6)=0.67231534163388
log 90(20.61)=0.67242319488599
log 90(20.62)=0.67253099582025
log 90(20.63)=0.67263874448739
log 90(20.64)=0.67274644093806
log 90(20.65)=0.67285408522286
log 90(20.66)=0.67296167739229
log 90(20.67)=0.67306921749679
log 90(20.68)=0.67317670558673
log 90(20.69)=0.6732841417124
log 90(20.7)=0.67339152592401
log 90(20.71)=0.67349885827172
log 90(20.72)=0.6736061388056
log 90(20.73)=0.67371336757565
log 90(20.74)=0.6738205446318
log 90(20.75)=0.6739276700239
log 90(20.76)=0.67403474380175
log 90(20.77)=0.67414176601505
log 90(20.78)=0.67424873671344
log 90(20.79)=0.67435565594649
log 90(20.8)=0.6744625237637
log 90(20.81)=0.67456934021451
log 90(20.82)=0.67467610534825
log 90(20.83)=0.67478281921422
log 90(20.84)=0.67488948186164
log 90(20.85)=0.67499609333963
log 90(20.86)=0.67510265369728
log 90(20.87)=0.67520916298358
log 90(20.88)=0.67531562124747
log 90(20.89)=0.6754220285378
log 90(20.9)=0.67552838490337
log 90(20.91)=0.6756346903929
log 90(20.92)=0.67574094505503
log 90(20.93)=0.67584714893835
log 90(20.94)=0.67595330209136
log 90(20.95)=0.67605940456252
log 90(20.96)=0.67616545640019
log 90(20.97)=0.67627145765267
log 90(20.98)=0.6763774083682
log 90(20.99)=0.67648330859494
log 90(21)=0.676589158381
log 90(21.01)=0.67669495777439
log 90(21.02)=0.67680070682307
log 90(21.03)=0.67690640557494
log 90(21.04)=0.67701205407782
log 90(21.05)=0.67711765237945
log 90(21.06)=0.67722320052754
log 90(21.07)=0.67732869856969
log 90(21.08)=0.67743414655345
log 90(21.09)=0.67753954452632
log 90(21.1)=0.67764489253569
log 90(21.11)=0.67775019062893
log 90(21.12)=0.6778554388533
log 90(21.13)=0.67796063725603
log 90(21.14)=0.67806578588426
log 90(21.15)=0.67817088478507
log 90(21.16)=0.67827593400547
log 90(21.17)=0.67838093359241
log 90(21.18)=0.67848588359276
log 90(21.19)=0.67859078405334
log 90(21.2)=0.6786956350209
log 90(21.21)=0.67880043654211
log 90(21.22)=0.6789051886636
log 90(21.23)=0.6790098914319
log 90(21.24)=0.67911454489351
log 90(21.25)=0.67921914909483
log 90(21.26)=0.67932370408223
log 90(21.27)=0.67942820990199
log 90(21.28)=0.67953266660032
log 90(21.29)=0.67963707422339
log 90(21.3)=0.67974143281729
log 90(21.31)=0.67984574242804
log 90(21.32)=0.67995000310159
log 90(21.33)=0.68005421488386
log 90(21.34)=0.68015837782067
log 90(21.35)=0.68026249195779
log 90(21.36)=0.68036655734092
log 90(21.37)=0.68047057401571
log 90(21.38)=0.68057454202772
log 90(21.39)=0.68067846142246
log 90(21.4)=0.68078233224539
log 90(21.41)=0.68088615454189
log 90(21.42)=0.68098992835728
log 90(21.43)=0.68109365373681
log 90(21.44)=0.68119733072569
log 90(21.45)=0.68130095936903
log 90(21.46)=0.6814045397119
log 90(21.47)=0.68150807179932
log 90(21.48)=0.68161155567621
log 90(21.49)=0.68171499138746
log 90(21.5)=0.68181837897789

Base 2 Logarithm Quiz

Take our free base 2 logarithm quiz practice to test your knowledge of the binary logarithm.

Take Base 2 Logarithm Quiz Now!
Scroll to Top