コープランド-エルデシュ定数
1. Copeland–Erdős constantThe Copeland–Erdős constant is the concatenation of "0. " with the base 10 representations of the prime numbers in order. Its value is approximately 0.235711131719232931374143…. The constant is irrational; this can be proven with Dirichlet's theorem on arithmetic progressions or Bertrand's postulate (Hardy and Wright, p. 113) or Ramare's theorem that every even integer is a sum of at most six primes. It also follows directly from its normality (see below).
Read “Copeland–Erdős constant” on English Wikipedia
Read “コープランド-エルデシュ定数” on Japanese Wikipedia
Read “Copeland–Erdős constant” on DBpedia
Read “Copeland–Erdős constant” on English Wikipedia
Read “コープランド-エルデシュ定数” on Japanese Wikipedia
Read “Copeland–Erdős constant” on DBpedia
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