Author Archive
Happy mathematical new year: 2011 scores again (so does 2012, coming up in under a year)
Posted by: Gary Ernest Davis on: January 11, 2011
In a previous post I discussed how 2011 is a prime number and also a sum of consecutive prime numbers. 2011 has another curious property that it shares with 2012, and with 2001 and 2002: Reversing the digits of 2011 we get the number 1102 Squaring 1102 gives us the number 1214404. On the other […]
The Rascal Triangle: how magic can happen if you listen to kids
Posted by: Gary Ernest Davis on: January 8, 2011
Three middle school students, widely geographically separated, worked together to produce a novel piece of mathematics of interest. The students, shown above, are (from left to right): Alif Anggoro, a seventh grader at Al Azhar Junior High School in Java Bekasi, Jakarta, Indonesia Eddy Liu, an eighth grader at Washington Middle School, Seattle, Washington, USA […]
