Hans Riesel

Phone number: +46 8-790 8193
Address: NADA, KTH, S-100 44 Stockholm, Sweden
Home address: Måbärsstigen 2, S-16565 Hässelby, Sweden
Home phone: +46 8-38 59 83
I was born in Stockholm in 1929. I have studied mathematics and numerical analysis at the University of Stockholm. My carrier with computers started back in 1953 with Sweden's first electronic computer, the BESK (Binary Electronic Sequence Calculator), a variant of the so-called Princeton machine. From 1960 to 1963 I served as head of the math department of the Swedish Board for Computing Machinery, an organization which was swallowed up by SAFAD, the Swedish Agency for Administrative Development. I served the SAFAD until 1969, when I was appointed lecturer in numerical analysis at the Royal Institute of Technology in Stockholm.

My scientific work has mainly been performed in Computational Mathematics. I have published one major book, "Prime Numbers and Computer Methods for Factorization", Birkhäuser, Boston 1985, 2nd ed. 1994.

My scientific interests are: Prime numbers and factorization, Fermat numbers, Mersenne numbers, Fermat's congruence, Bernoulli numbers, Continued fractions, Infinite series, Computer programming, Various, Didactics.

My privat interests are: Boating.

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