Ramanujan–Nagell equation
THE DIOPHANTINE EQUATION 2ⁿ−7=𝑥²
Ramanujan-Skolem's theorem; Ramanujan's square equation; Ramanujan square equation; Ramanujan-Skolem theorem; Triangular Mersenne number; Ramanujan-Nagell equation; Ramanujan–Skolem's theorem; Lebesgue–Nagell equation; Ramanujan–Nagell Equation; Ramanujan-Nagell Equation; Lebesgue-Nagell equation; Ramanujan–Skolem theorem
In mathematics, in the field of number theory, the Ramanujan–Nagell equation is an equation between a square number and a number that is seven less than a power of two. It is an example of an exponential Diophantine equation, an equation to be solved in integers where one of the variables appears as an exponent.