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k a My Retirement & New Leadership at AoPS
rrusczyk   1571
N Mar 26, 2025 by SmartGroot
I write today to announce my retirement as CEO from Art of Problem Solving. When I founded AoPS 22 years ago, I never imagined that we would reach so many students and families, or that we would find so many channels through which we discover, inspire, and train the great problem solvers of the next generation. I am very proud of all we have accomplished and I’m thankful for the many supporters who provided inspiration and encouragement along the way. I'm particularly grateful to all of the wonderful members of the AoPS Community!

I’m delighted to introduce our new leaders - Ben Kornell and Andrew Sutherland. Ben has extensive experience in education and edtech prior to joining AoPS as my successor as CEO, including starting like I did as a classroom teacher. He has a deep understanding of the value of our work because he’s an AoPS parent! Meanwhile, Andrew and I have common roots as founders of education companies; he launched Quizlet at age 15! His journey from founder to MIT to technology and product leader as our Chief Product Officer traces a pathway many of our students will follow in the years to come.

Thank you again for your support for Art of Problem Solving and we look forward to working with millions more wonderful problem solvers in the years to come.

And special thanks to all of the amazing AoPS team members who have helped build AoPS. We’ve come a long way from here:IMAGE
1571 replies
rrusczyk
Mar 24, 2025
SmartGroot
Mar 26, 2025
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k a March Highlights and 2025 AoPS Online Class Information
jlacosta   0
Mar 2, 2025
March is the month for State MATHCOUNTS competitions! Kudos to everyone who participated in their local chapter competitions and best of luck to all going to State! Join us on March 11th for a Math Jam devoted to our favorite Chapter competition problems! Are you interested in training for MATHCOUNTS? Be sure to check out our AMC 8/MATHCOUNTS Basics and Advanced courses.

Are you ready to level up with Olympiad training? Registration is open with early bird pricing available for our WOOT programs: MathWOOT (Levels 1 and 2), CodeWOOT, PhysicsWOOT, and ChemWOOT. What is WOOT? WOOT stands for Worldwide Online Olympiad Training and is a 7-month high school math Olympiad preparation and testing program that brings together many of the best students from around the world to learn Olympiad problem solving skills. Classes begin in September!

Do you have plans this summer? There are so many options to fit your schedule and goals whether attending a summer camp or taking online classes, it can be a great break from the routine of the school year. Check out our summer courses at AoPS Online, or if you want a math or language arts class that doesn’t have homework, but is an enriching summer experience, our AoPS Virtual Campus summer camps may be just the ticket! We are expanding our locations for our AoPS Academies across the country with 15 locations so far and new campuses opening in Saratoga CA, Johns Creek GA, and the Upper West Side NY. Check out this page for summer camp information.

Be sure to mark your calendars for the following events:
[list][*]March 5th (Wednesday), 4:30pm PT/7:30pm ET, HCSSiM Math Jam 2025. Amber Verser, Assistant Director of the Hampshire College Summer Studies in Mathematics, will host an information session about HCSSiM, a summer program for high school students.
[*]March 6th (Thursday), 4:00pm PT/7:00pm ET, Free Webinar on Math Competitions from elementary through high school. Join us for an enlightening session that demystifies the world of math competitions and helps you make informed decisions about your contest journey.
[*]March 11th (Tuesday), 4:30pm PT/7:30pm ET, 2025 MATHCOUNTS Chapter Discussion MATH JAM. AoPS instructors will discuss some of their favorite problems from the MATHCOUNTS Chapter Competition. All are welcome!
[*]March 13th (Thursday), 4:00pm PT/7:00pm ET, Free Webinar about Summer Camps at the Virtual Campus. Transform your summer into an unforgettable learning adventure! From elementary through high school, we offer dynamic summer camps featuring topics in mathematics, language arts, and competition preparation - all designed to fit your schedule and ignite your passion for learning.[/list]
Our full course list for upcoming classes is below:
All classes run 7:30pm-8:45pm ET/4:30pm - 5:45pm PT unless otherwise noted.

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0 replies
jlacosta
Mar 2, 2025
0 replies
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Strange limit
Snoop76   4
N an hour ago by Svyatoslav
Find: $\lim_{n \to \infty} n\cdot\sum_{k=1}^n \frac 1 {k(n-k)!}$
4 replies
Snoop76
Mar 29, 2025
Svyatoslav
an hour ago
J
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Improper integrahl manipulation
MetaphysicalWukong   1
N an hour ago by HacheB2031
Given the image, find out with justification if the following integrals converge or are uncertain to converge:
$\int _1^{\infty }\:\frac{h\left(x\right)}{x}dx,\:\int _1^{\infty \:}\:\sqrt{h\left(x\right)}dx,\:\int _1^{\infty \:}\:h\left(x^2\right)dx$
1 reply
MetaphysicalWukong
Today at 7:09 AM
HacheB2031
an hour ago
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n->inf, f(n)->0
Alidq   2
N 2 hours ago by Alidq
I have a sequence $a_n=\sqrt[n]{f(n)} , n \geq 2$ where $f$ is a bijection from $\{0,1,2,….,n\}$ to itself.I need to find the limit of this sequence when $n$ tends to infinity , in the solution my friend gave to me he said that it’s trivial that the limit is greater or equal than 1 can someone tell me why?
2 replies
Alidq
2 hours ago
Alidq
2 hours ago
J
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ecuation real numbers
MihaiT   2
N 4 hours ago by MihaiT
Let $f,g:R->R $be continuous, and $f$ is increasing and $g $is decreasing. If $ f,g $ have the same horizontal asymptote at $+\infty$,which is the number of solutions of the equation $f(x)=g(x)$ ?(Or can this number not be specified?)
2 replies
MihaiT
Yesterday at 6:52 PM
MihaiT
4 hours ago
J
No more topics!
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J
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Sequence, limit and number theory
KAME06   2
N Mar 30, 2025 by KAME06
Source: Ecuador National Olympiad OMEC level U 2023 P6 Day 2
A positive integers sequence is defined such that, for all $n \ge 2$, $a_{n+1}$ is the greatest prime divisor of $a_1+a_2+...+a_n$. Find:
$$\lim_{n \rightarrow \infty} \frac{a_n}{n}$$
2 replies
KAME06
Feb 6, 2025
KAME06
Mar 30, 2025
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Sequence, limit and number theory
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Reveal topic tags
number theory
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Source: Ecuador National Olympiad OMEC level U 2023 P6 Day 2
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KAME06
126 posts
KAME06
#1 h  Feb 6, 2025, 8:32 PM
Y by
A positive integers sequence is defined such that, for all $n \ge 2$, $a_{n+1}$ is the greatest prime divisor of $a_1+a_2+...+a_n$. Find:
$$\lim_{n \rightarrow \infty} \frac{a_n}{n}$$
This post has been edited 1 time. Last edited by KAME06, Feb 6, 2025, 8:33 PM
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Rainbow1971
23 posts
Rainbow1971
#2 h  Mar 29, 2025, 7:57 PM
Y by
And what are the definitions of $a_1$ and $a_2$?
Z K Y
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KAME06
126 posts
KAME06
#4 h  Mar 30, 2025, 3:54 AM
Y by
Rainbow1971 wrote:
And what are the definitions of $a_1$ and $a_2$?

We just know they are two positive integers
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