7 is the only real range D for which the equation 2n ? D = x2 has more than two solutions for n and x pure. Particularly, the equation 2n ? 7 = x2 is recognized as the Ramanujan–Nagell equation.The mourners sit Shivah in the house from the deceased or the home with the mourners. They go directly to the house once the funeral. A large candle burns… Read More