Q: By the end of the 9th day of the 9th month (i.e. 9th September), the 252nd day of the year, how many minutes had passed this year? A: 9! = 252 days= 9×28 days= 9×28×24 hours= 9x28×24×60 minutes= 9×(7×4)×(8×3)×(6×5×2) minutes= 9×8×7×6×5×4×3×2 minutes= 9! minutes
I have been a bit busy because of multiple things happening on personal and professional front. So I missed blogging about some interesting events/topics. Finally I decided to prioritise and post this blog. (As they say: "It's never about time; it's about priorities and genuine intent") I am combining two blog topics/themes into one because... Continue Reading →
Do you know what "emirp" is? An emirp is a prime whose reversal is a different prime. A cyclic emirp is an emirp that generates only more emirps when the last digit is successively moved to the front (or vice-versa). The largest known cyclic emirp is 939,391.
Today is a memorable day for me. Exactly 20 years ago, on 15th July 2000 I appeared for my first interview and successfully cracked it! So I thought of writing about it. It was during the campus placements in the last year of Engineering. I had just entered the last year in year 2000. The... Continue Reading →
X1 ÷ 1X = 3What is X = ? Hint: X can be a digit or a number (a combination of digits)
I like Mathematics and Puzzles and Problem Solving from very young age. Even today I dabble with many puzzles in my free time and I am in fact working on a book of puzzles (well, I am ashamed of saying so, because it's in the making for last 2+ years). Puzzles, riddles etc, if used... Continue Reading →
Today is the 100th death anniversary of the amazing mathematician Srinivas Ramanujan. He passed away at a young age of 32 on April 26, 1920, at Kumbakonam in Tamil Nadu. I have written a few times about Srinivas Ramanujan. However today is a special milestone - it's 100th anniversary. I had written in an earlier... Continue Reading →
Happy Pi Day! Founded in 1988 by physicist Larry Shaw, Pi (π) Day is celebrated all around the world on March 14, because the date is 3/14. Here is a fun fact,If you're a serious math geek:Celebrate the day exactly at 1:59 a.m. or p.m. so you can reach the first six numbers of pi,... Continue Reading →