Archive for the ‘Monday Math Madness!’ Category
Friday, October 30th, 2009
Random.org selected Ken Lareau as the winner for MMM #38. Congratulations, Ken! Here's what the problem was:
Prove or disprove: The product of any four consecutive integers is always one less than a perfect square.
Don’t assume the integers are all positive.
Here's Ken's solution:
The ...
Posted in Monday Math Madness! | 4 Comments »
Thursday, August 6th, 2009
Today I'm announcing two more prizes for MMM #37.
Here is IB Yea's solution:
The problem is to find the algorithm for the coordinate and number for the spiral that goes like the following:
25 24 23 22 21
10 09 08 07 20
11 02 01 06 19
12 03 04 05 18
13 14 15 ...
Posted in Monday Math Madness! | No Comments »
Tuesday, August 4th, 2009
I'm going to give a number of $10 prizes for MMM #37. Here's the first to Alec Cooper for his very elegant solution. I paid Alec to look through all the submissions to determine which were correct. Most were. I'll be giving a prize to everyone who turned in a ...
Posted in Monday Math Madness! | 5 Comments »
Monday, August 3rd, 2009
Results of MMM #37 should be out in the next couple of days.
Here's MMM #38:
Prove or disprove: The product of any four consecutive integers is always one less than a perfect square.
Don't assume the integers are all positive.
SHARETHIS.addEntry({
title: "MMM #38: square or no square?",
url: "http://wildaboutmath.com/2009/08/03/mmm-38-square-or-no-square/"
});
Posted in Monday Math Madness! | 2 Comments »
Sunday, August 2nd, 2009
I got submissions from eight people for this latest problem. Yes, this problem was tougher than most so I'm delighted to have gotten so many entries. I recently started work on a big software development project on a very tight schedule so I've not had the time to check each ...
Posted in Monday Math Madness! | No Comments »
Monday, July 20th, 2009
Our new Monday Math Madness extends the exploration of MMM #36.
Here's the problem:
Based on the introduction to spiral numbers presented in MMM #36, solve one (or both) of these problems:
Come up with an algorithm that tells what number is at an arbitrary X, Y coordinate.
Come up with an algorithm ...
Posted in Monday Math Madness! | 9 Comments »
Saturday, July 18th, 2009
27 of you submitted solutions to MMM #36. Random.org has selected Mathias Malandain as the winner. Congratulations, Mathias!
This was the problem:
Imagine arranging the positive integers in a spiral pattern.
The numbers from 1 to 16 look like this in the spiral pattern.
10 9 8 7
11 2 ...
Posted in Monday Math Madness! | 1 Comment »
Sunday, July 5th, 2009
I'll be contacting the three winners of MMM #35 in the next couple of days to get them their prizes.
Let's move on to MMM #36. I made this one up just for Monday Math Madness!
Imagine arranging the positive integers in a spiral pattern.
The numbers from 1 to 16 look like ...
Posted in Monday Math Madness! | 7 Comments »
