Contact Info
Email: eerrthum AT winona DOT edu
Office: 209 Gildemeister Hall
Office Phone: 457-5153
Curriculum Vitae

Eric Errthum



Teaching (Fall 2026)

·          MATH110 – Finite Math

o   Section 02

o   Section 03 (online)

·         MATH112 – Applied Precalculus

·         MATH347 – Number Theory

·         MATH490 – Independent Project: Permutation Puzzles

·         OR100 – Introduction to Higher Ed

Previous Semesters’ Courses

Student Research Projects

         Looking for new students/projects! Email me if interested!

         Things I’ve been interested in lately: Kirkman’s Schoolgirl Problem, irrational number bases, p-adics, continued fractions, …

Former Student Research Projects

My Research

Miscellaneous Info

·         MATH Student Advising Materials

·         profile for Aeryk on Stack Exchange, a network of free, community-driven Q&A sites

·         Department Course Outlines