8 to the 77th power is 3450873173395281893717377931138512726225554486085193277581262111899648.
The calculation formula is as follows.
$8^{77}=$
3450873173395281893717377931138512726225554486085193277581262111899648
Also, $8^{77}$ has 70 digits.
This page explains how to calculate $8^{77}$ and how to calculate the number of digits of $8^{77}$.
Calculating 8 to the 77th Power
8 to the 77th power is simply 8 multiplied by 77 times.
Basically, the only way to find it is to repeat multiplication.
A google search is convenient.
For example, if you search for "14 to the 21st power" on google, a calculator will come up and tell you the answer.
>>search link<<
As explained, the calculation of the power takes time, so it may be obtained as step 1.
Next, let's find the number of digits in $8^{77}$.
Number of digits in 8 to the 77th power
Calculating $8^{77}$ gives us 70 digits.
Find the number of digits in 8 to the 77th power
Let's actually ask for it.
Let's calculate the common logarithm of 8 to the 77th power.
\begin{eqnarray}
\log_{10}8^{77}&=&77 \log_{10}8\\
&=&77\times 0.903\cdots\\
&=&69.537
\end{eqnarray}
In other words,
We can say that $8^{77}=10^{69.537}$, so we know that $8^{77}$ has 70 digits.
How to find the number of digits
To find the number of digits in $8^{77}$, use common logarithms.
By using the common logarithm, we can calculate the power of 10, so we know the number of digits.
For example, $10^1=10$ is 2 digits.
On the other hand, $10^2=100$, so 3 digits.
So $10^a$ has $10+1$ digits.
If $a$ is a decimal, the number of digits is the integer part plus 1.
$a=11.34$ will be 12 digits.
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