Andrew Odlyzko
Andrew Odlyzko is a mathematician best known for disproving the Mertens conjecture with Herman J. J. te Riele. Odlyzko co-authored “On the Density of Odd Integers of the Form and Related Questions” in J. of Number Theory
11 (1979) with Paul Erdős, and thus has Erdős number (http://planetmath.org/ErdHosNumber) 1. Odlyzko studied at the Massachusetts Institute of Technology.