Question: Aleksandr Khinchin and Nikolai Chebotaryov were both what?
Sentence (from "Nikolai Chebotaryov"): Nikolai Grigorievich Chebotaryov (often spelled Chebotarov or Chebotarev, Russian: Никола́й Григо́рьевич Чеботарёв , Ukrainian: Микола Григорович Чоботарьов ) (15 June [O.S. 3 June] 1894 – 2 July 1947) was a noted Ukrainian and Soviet mathematician.
Relevant evidence: Yes