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Mathematicians Of The Day
30th June
On this day in 1742, Leonard Euler claimed in a letter to Goldbach that prime numbers of the form 4n+ 1 are represented uniquely as a sum of two squares.
He also mentioned that 641 divides , thereby disproving Fermat's claim that all the so-called numbers Fermat numbers are prime. Years later we have not found another with n > 4 which is prime.
The postage stamp of one of today's mathematicians at THIS LINK was issued in 1976.
He also mentioned that 641 divides , thereby disproving Fermat's claim that all the so-called numbers Fermat numbers are prime. Years later we have not found another with n > 4 which is prime.
The postage stamp of one of today's mathematicians at THIS LINK was issued in 1976.
Click on Ⓟ for a poster.
Born:
- 1748: Dominique Cassini Ⓟ
- 1791: Félix Savart Ⓟ
- 1846: Eugen Netto Ⓟ
- 1856: Cargill Knott Ⓟ
- 1868: Geoffrey Bennett Ⓟ
- 1876: Anton Davidoglu Ⓟ
- 1880: Rudolf Fueter Ⓟ
- 1900: Gheorghe Vrănceanu Ⓟ
- 1907: Dmitrii Konstantinovich Faddeev Ⓟ
- 1909: Danuta Gierulanka Ⓟ
- 1923: Murray Macbeath Ⓟ
- 1958: Abigail Thompson Ⓟ
Died:
- 1817: Li Rui
- 1919: John William Strutt Ⓟ
- 1960: Albert Châtelet Ⓟ
- 1972: Yuri Vladimirovich Linnik Ⓟ
- 2002: Claude Berge Ⓟ
- 2019: Mitchell Feigenbaum Ⓟ
Quotation of the day
From John William Strutt
Some proofs command assent. Others woo and charm the intellect. They evoke delight and an overpowering desire to say, "Amen, Amen".
Theorem of the day from Robin Whitty