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'''Christian Goldbach''' ([[March 18]], [[1690]] – [[November 20]], [[1764]]) was a [[Prussia]]n [[mathematician]] who also studied [[law]]. He is remembered today for [[Goldbach's conjecture]].
==Biography==
Born in the [[Duchy of Prussia]]'s capital [[Kaliningrad|Königsberg]], part of [[Brandenburg-Prussia]], Goldbach was the son of a pastor. He went to work at the newly opened [[St Petersburg Academy of Sciences]] in 1725. Later on, he was a tutor to the later Tsar [[Peter II of Russia|Peter the Great]] in 1728. In 1742 he entered the Russian Ministry of Foreign Affairs <ref name="element">{{cite book |last=Rosen|first=Kenneth H.|title=Elementary Number Theory, Fifth Edition|year=2004|publisher=Addison-Wesley|isbn=0321237072}}</ref>.
==Contributions==
Goldbach traveled widely throughout Europe and met with many famous mathematicians, such as [[Gottfried Leibniz]], [[Leonhard Euler]], and [[Nicholas I Bernoulli]]. He is most noted for his correspondence with these mathematicians, especially in his 1742 letter to Euler stating his [[Goldbach's Conjecture]]. He also studied and proved some theorems on [[perfect power]]s, and made several notable contributions to analysis <ref name="element"/>.
==References==
{{reflist}}
==External links==
*{{MacTutor Biography|id=Goldbach}}
* [http://www.math.dartmouth.edu/~euler/correspondence/correspondents/Goldbach.html Electronic copies of Euler's correspondence with Goldbach]
{{DEFAULTSORT:Goldbach, Christian}}
[[Category:1690 births]]
[[Category:1764 deaths]]
[[Category:German mathematicians]]
[[Category:18th century mathematicians]]
[[Category:German natives of East Prussia]]
[[Category:Number theorists]]
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