## Mathematicians Of The Day

### 3rd April

On this day in 1753, Leonard Euler wrote to Christian Goldbach to say that he had confirmed Goldbach's conjecture that every odd integer could be written as $2n^2 + p$ with

*p*a prime for the first 2500 integers. A hundred years later, Moritz Stern found two counterexamples: 5777 and 5993.
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##### Born:

- 1832: Wilhelm Fiedler Ⓟ
- 1835: Howard Van Amringe Ⓟ
- 1859: Karl Heun Ⓟ
- 1892: Hans Rademacher Ⓟ
- 1900: Albert Ingham Ⓟ
- 1907: Mark Krein Ⓟ
- 1913: Jan Mikusiński Ⓟ
- 1937: Enrique Planchart Ⓟ

##### Died:

- 1472: Leone Battista Alberti Ⓟ
- 1718: Jacques Ozanam
- 1888: Axel Harnack Ⓟ
- 1900: Joseph Bertrand Ⓟ
- 1974: Andor Kertész Ⓟ
- 1993: Leopoldo Nachbin Ⓟ
- 1998: Mary Cartwright Ⓟ
- 2018: David Foulis Ⓟ

#### Quotation of the day

##### From Joseph Bertrand

How dare we speak of the laws of chance? Is not chance the antithesis of all law?