Find the remainder $4444^{4444}$ when divided by 9
360
Modular exponentiation by hand ($a^b\bmod c$)
97150
Solve $[2^{(2^{403})}] = [a]$ in $\mathbb Z_{23}$ where $0 \le a < 23$.
17194
$6^{(n+2)} + 7^{(2n+1)}$ is divisible by $43$ for $n \ge 1$
99243
What is the remainder when $24^{1202}$ is divided by $1446$?
34227
Continued fraction of a square root
115264
Find when three numbers have the same remainder when divided by the same number
49116
Finding the last digit of $103^{103^{103^{103^{103}}}}$
104982
Determine $\phi(2^{399}+1)$
128393
What is the remainder of dividing $14^{256}$ by $17$?
72406
Last two digits of $2^{1000}$ via Chinese Remainder Theorem?
25299
What is the remainder when $2^{1990}$ is divided by $1990$?
2300
Determine the remainder when $f(x) = 3x^5 - 5x^2 + 4x + 1$ is divided by $(x-1)(x+2)$
110460
find remainder of a number
153302
$9$ divides $n-r(n)$ where $r(n)$ is $n$ with its digits reversed
17243
Remainder when $2009^{2009}-1982^{2009}-1972^{2009}+1945^{2009}$ is divided by $1998$
77866
Find $x$ in $4^x+6^x=9^x$
109640
How do i find $(1+i)^{100}?$