Is it known whether a triangular number can be any power with exponent greater than $2$?
8978
Who can prove that a triangular number cannot be a cube, fourth power or fifth power?
125707
A simple proof (hopefully) for $2^x \neq 0$
141183
How to determine highest power of $2$ in $3^{1024}-1$?
138360
Exponents and absolute value w/ complex numbers
47792
Integer coefficient polynomial - values as powers of 2
20548
General formula to obtain triangular-square numbers
79219
Prove that $a^{2^n} \equiv 1 \pmod{2^{n+2}},$ where $a$ is an odd integer.
137875
Are all prime numbers greater than 2 odd?
94983
Can an odd number $n$ divide $2^n-1$?
131905
Proof for exponentiation in modular arithmetic
146746
A formula for the sum of the triangular numbers?
78702
Which triangular numbers are also squares?
130093
Prove by Induction : $n < 2^n$
113993
Complex power of a complex number
148745
Determine if a number is the sum of two triangular numbers.
38954
Is there a convention for power of a half being the positive square root?
63661
integers $n$ such that $(n-1)!+1$ is a power of $n$