14 Best Math Communities (Updated May 2026)

14 Online Communities for Math

Updated 5/13/2026

#1
Cosmos Domain
on discord
Welcome to Cosmos Domain! We invite you to explore and learn with us! Join our server for various topics like math, physics, astronomy, biology, chemistry, and more STEM subjects!
2K members
Chat
22 views / month
#2
r/learnmath
on reddit
Post all of your math-learning resources here. Questions, no matter how basic, will be answered (to the best ability of the online subscribers).
456K members
Forum
18 views / month
#3
r/matheducation
on reddit
/r/matheducation is for discussions of math teaching and pedagogy.
41K members
Forum
7 views / month
#4
Mathematics
on discord
An active community for math enthusiasts, focused on the appreciation of mathematics, homework help, and teaching new concepts. Features channels for various levels of math.
332K members
Chat
6 views / month
#5
r/math
on reddit
This subreddit is for discussion of mathematics. All posts and comments should be directly related to mathematics, including topics related to the practice, profession and community of mathematics.
4.0M members
Forum
10 views / month
#6
Number Theory
on linkedin
Number Theory is a mathematical study of the axiomatic properties of positive integers including powers of integers, squares, cubes, triangular, factorial, Fibonacci, composite, prime, perfect, Mersenne, Fermat, Ramanujan, factors, Pisot, social, deficient, abundant, Pickover, Batrachian and modular forms. This group is formed to advance the use of number theory in physics, chaos theory and fractal theory as well. Dirichlet and zeta functions as they apply to the theory of numbers will be discussed. Both cyclotomic and subcyclotomic numbers are also of great interest in Pisot and metal means discussions. We will welcome open discussions and new developments in number theory.
39K members
Forum
8 views / month
#7
Math Help Forum
Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists.
Forum
2 views / month
#8
Mathematics Stack Exchange
A question and answer site for people studying math at any level and professionals in related fields. Part of the Stack Exchange network.
1.6M members
Forum
9 views / month
#9
Mathematical Association of America
The Mathematical Association of America is the world’s largest community of mathematicians, students, and enthusiasts. We further the understanding of our world through mathematics because mathematics drives society and shapes our lives.
Forum
Perks
Events
Paid
2 views / month
#10
MathOverflow
MathOverflow is a question and answer site for professional mathematicians. Anybody can ask a question. Anybody can answer. The best answers are voted up and rise to the top.
170K members
Forum
5 views / month
Art of Problem Solving
Art of Problem Solving creates educational materials for motivated students in grades 2–12. The company's books, classes, and online resources help students become creative, successful problem solvers. The website contains a community forum that is available to all that have math questions.
806K members
Forum
5 views / month
r/AskStatistics
on reddit
Ask a question about statistics (other than homework). Don't solicit academic misconduct. Don't ask people to contact you externally to the subreddit. Use informative titles.
132K members
Forum
2 views / month
r/statistics
on reddit
/r/Statistics is going dark from June 12-14th as an act of protest against Reddit's treatment of 3rd party app developers. _This community will not grant access requests during the protest. Please do not message asking to be added to the subreddit._
627K members
Forum
2 views / month
Maths & Unusual Chess
on linkedin
Mathematics, Chess Problems, ChessBoard Puzzles, Math Chess and unusual aspects of the chess world...
6K members
Forum

FAQ

: Communities for math students, enthusiasts, and professionals covering everything from calculus help to higher-level pure and applied mathematics. Reddit has large communities for homework help and recreational math, with Discord servers serving students and dedicated forums for specific branches of the discipline.
: Hive Index lists 14 Math communities on this page. Most listings with size data are massive (43%) or large (14%). We only have a handful of listings so far, so treat these numbers as directional.
: Reddit (5), Independent Platforms (5), and LinkedIn (2) are the most common here. Click a platform icon above the list to open a filtered view.
: Forum is the most common feature (86% of listings).
: 13 of 14 (93%) are free to join. The rest require payment, an application, or both.
: On Hive Index, the default Popular sort surfaces Cosmos Domain, r/learnmath, r/matheducation, and Mathematics first. Popularity reflects visitor interest in communities on the site, not a universal quality score. Use the sort menu for Ratings, Largest, or Newest.
: Listings are submitted by community builders and researchers, reviewed for topic relevance, and updated with platform, feature, member, review, and traffic data where available. Member counts are approximate. Popular reflects visitor interest in communities on the site, with richer profiles breaking ties. Ratings, Largest, and Newest use review scores, reported member counts, and listing age instead.
: This page was last updated 5/13/2026, based on the most recent change to the topic or its listings. We refresh entries when communities are submitted, claimed, or reviewed, and we update member counts, features, and traffic data on an ongoing basis.