Sierpiński, Wacław Sur une question concernant le nombre de diviseurs premiers d’un nombre naturel. (French) Zbl 0086.03503 Colloq. Math. 6, 209-210 (1958). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document Keywords:number theory × Cite Format Result Cite Review PDF Full Text: DOI EuDML Online Encyclopedia of Integer Sequences: Numbers k such that k and k+1 are prime powers.