# Mathematician:Hans Ivar Riesel

## Mathematician

Swedish mathematician who found the $18$th Mersenne prime $2^{3217} - 1$ in $1957$.

He held the record for the highest known prime from $1957$ to $1961$, when Alexander Hurwitz found the next two.

Swedish

## History

• Born: May 28, 1929, Stockholm, Sweden
• Died: December 21, 2014

## Theorems and Definitions

Results named for Hans Ivar Riesel can be found here.

Definitions of concepts named for Hans Ivar Riesel can be found here.

## Publications

• 1994: Prime Numbers and Computer Methods for Factorization