KnowraBasel problemLinked fromLinked fromThe 4 pages that link to Basel problem, each with the reason it gives.All 4Broader topic 1Related 2Compared with 1Leonhard EulerBroader topic: Euler’s solution, π²/6, demonstrated the power of his approach to infinite series.Euler productRelated: Euler’s solution used the zeta function whose prime product became a landmark result.Apéry's theoremCompared with: It contrasts a celebrated exact evaluation at 2 with the irrationality result at 3.Divergence of the sum of the reciprocals of the primesRelated: Euler’s solution used the zeta function and prime products that also illuminate reciprocal primes.