Milne, J. S. - Number theory, arithmetic geometry. Mazur, Barry - Harvard University. Number theory, automorphic forms, arithmetic algebraic geometry. Papers and work in progress. Matthews, Keith - University of Queensland (emeritus). Computational problems, Diophantine equations, LLL, Collatz problem. Originator and maintainer of the Number Theory Web. Morain, Francois - École Polytechnique. Computational number theory, cryptography. Papers, ECPP software. Murty, Kumar - University of Toronto, Canada. Publications and resources for Number Theory courses. Meuser, Diane - Boston University. Number theory and Algebraic geometry. Contact information. Marklof, Jens - University of Bristol. Quantum Chaos, Equidistribution, Modular Forms. Publications, research projects. Mihailescu, Preda - Universität-GH Paderborn. Primality proving; Computational number theory; complex and numerical analysis. Publications, thesis, software: CYCLOPROV, a LiDIA based C++ package for primality proving. Melfi, Giuseppe - University of Pisa, Italy. Diophantine approximation; Modular forms; Elementary number theory; Practical numbers. Papers and thesis. Mersenne, Marin - Annotated portal of resources about a Frenchman, who lived during in era of Descartes and Pascal and developed a type of formula to generate certain prime numbers. McMurdy, Ken - Ramapo College of New Jersey. Stable reduction of modular curves. Phd thesis, preprints.