Welcome to the National Internet Math Olympiad!
Contest #7 will be on Monday, May 27, 2013 at 8:00 PM EDT (5:00 PM PDT). There will be five problems to solve in 40 minutes, worth 5, 7, 8, 10 and 12 points.Detailed rules can be found on the monthly rules page.
The NIMO April Fools' Contest will take place on Monday, April 1, 2013 from 12:01 AM EDT to 11:59 PM EDT. There will be 12 problems to solve, and contestants can submit answers to any of the problems at any time during this interval. Each contestant's overall score will be determined by the sum of the weights of the problems solved correctly, and ties will be broken by the total number of incorrect submissions. In particular, the time of submission will not be used. Each contestant may attempt each problem up to 5 times, but only the last submission will be counted. All answers are positive integers. Problem values are all primes, and the maximum possible score is 101.
Congratulations to the winners of the student-written NIMO Contest #6:
Those with a score of 36 or higher were entered into a drawing for the fourth prize. The winning of the drawing was Yang Liu. Congratulations to all the winners!
You may sign up for an account via the "Register" link on the sidebar. It is not necessary to register a new account for each contest.
This contest was recently founded by a few of the nation's brightest student-mathematicians. The NIMO is a team contest that promotes teamwork among contestants of the same group. Ranging from easier math problems to very challenging questions, eight problems are presented in the contest to stimulate mathematical insight among high-school underclassmen across the nation.
Registration as well as participation is free.
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