Anton Felkel
Anton Felkel (26 April 1740, Kamenz, Silesia – c. 1800, possibly in Lisbon, Portugal) was an Austrian mathematician who worked on the determination of prime numbers. Work 
In 1776 and 1777, Felkel published a table giving complete decompositions of all integers not divisible by 2, 3, and 5, from 1 to 408,000. Felkel had planned to extend his table to 10 million. A reconstruction of his table is found on the LOCOMAT site. Publications 
Tafel aller einfachen Factoren der durch 2, 3, 5 nicht theilbaren Zahlen von 1 bis 10 000 000. Vienna: 1776;
 I. Theil enthaltend die Factoren von 1 bis 144000 (also published in Latin)
 Pars II. exhibens factores numerorum ab 144001 usque 336000
 Pars III. exhibens factores numerorum ab 336001 usque 408000
Wahre Beschaffenheit des Donners: Eine ganz neue Entdeckung durch einen Liebhaber der Naturkunde. Wien: v. Ghelen, 1780;
Neueröffnetes Geheimniss der Parallellinien enthaltend verschiedene wichtige Zusätze zur Proportion und Körperlehre von Anton Felkel; nebst einer dreyfachen vorläufigen Nachricht von den dazu dienenden neuerfundenen mechanischen Kunstgriffen etc. Wien; von Ghelenschen Buchhandlung, 1781;

References 
 "Number Theory for the Millenium", University of Illinois at Urbana-Champaign

18th-century Austrian mathematicians
18th-century Austrian people
Austrian mathematicians
Number theorists
Scientists from Vienna
1740 births
Year of death missing