2016 January 21
originally posted on facebook

A new Mersenne prime and a new planet? What a week!

“it was sent to the four most renowned Australian number theorists. They were asked to work on it for six hours. None of them could solve it in this time. […] the jury finally had the courage to choose it as the last problem of the competition. Eleven students gave perfect solutions.” Wikipedia

“Discombobulate” was originally “discombobricate”.

https://en.wiktionary.org/wiki/Appendix:Fanciful_19th_century_American_coinages

Finding integer solutions to

\frac a{b + c} + \frac b{c + a} + \frac c{a + b} = 4

https://mathoverflow.net/questions/227713/estimating-the-size-of-solutions-of-a-diophantine-equation

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