So we all hear Euler's name pop up all the time in our class, so I thought I would find out more about him. I am including some information I found online. I thought it was unbelievable how Euler was only 20 years old when he did most of his work on number theory! That is just amazing!

"Leonhard Euler made many contributions to the field of mathematics, including his work in number theory. This Swiss mathematician spent most of his working life in Russia, where his number theoretic work was suggested by issues raised by Pierre de Fermat, as well as his own ideas. **Euler's work in number theory included topics such as the study of perfect numbers, the quadratic reciprocity law, the so-called Pell equation, and Fermat's Last Theorem, to name just a few.** Although Euler did not initiate the study of many of the problems that he worked on, nor did he solve any completely, but **he made great contributions for himself and for many other mathematicians.** Leonhard Euler was born on April 15, 1707, in Basel, Switzerland, and died on September 18, 1783, in St. Petersburg, Russia. Growing up in Riehen, a town not far from Basel, Euler was taught mathematics by his father because it was not taught in the school that he was attending. Johann Bernoulli had discovered the mathematical talent that young Euler was blessed with. In 1725, at the mere age of 18, Euler was already studying at the University of Basel, and the next year, he was completing his graduate studies there. In the autumn of 1726, Euler was offered a position in the Russian Academy of Sciences in St. Petersburg. It may sound a little strange that such a distinguished foreign academy would be aware of young Euler in Switzerland, but when Bernoulli's sons, Nicholas II and Daniel, had been accepted in 1725, they had made an agreement between themselves that whenever an open seat would come up, Euler would be the first one that they would recommend. **As a result Euler arrived in St. Petersburg on May 17, 1727, when he was only 20 years old (Calinger 124-5). It is in this period that the bulk of his work in number theory was undertaken. "**

Add anything else that you would like to about Euler and his work! Thanks!