Today is D.R. Kaprekar's 114th birth anniversary. Kaprekar was an Indian recreational mathematician who described several classes of natural numbers including the Kaprekar, Harshad and Self numbers and discovered the Kaprekar constant, named after him. Kaprekar numbers are numbers whose square in that base can be split into 2 parts that add up to the... Continue Reading →
Recreational mathematics is mathematics carried out for recreation (entertainment) rather than as a strictly research and application-based professional activity. By that definition, a big part of my interest in mathematics is recreational - because I don't use it for research or professional activity. I used to solve lot of puzzles since childhood and still love solving puzzles. One of interesting... Continue Reading →
Mathematical date alert! 26th September 26/9 is the 269th day of the year. Is it the unique such case? I think it it... One more... How many days left of 2018? There are 96 2 go!