Re: 2025 is 45 squared

On 2025-01-02 16:35:00 +0000, solar penguin said:

Nomen Nescio wrote:
 

keeping the spirit of autistic Tim B. alive!

 And for those of you who want even more of the mathematical
properties of 2025, try Diamond Geezer’s excellent blog:
http://diamondgeezer.blogspot.com/2025/01/2025.html
 Apparently 2025 is also the square number of a triangular number.
 (1+2+3+ ... +8+9)^2 = 45^2 = 2025
 The last time it happened was in 1296 = (1+2+3+ ... +8)^2.
Edward I was on the throne at the time.
 I bet even Tim hasn’t even noticed that yet!

The next time it happens won't be for another 1000 years.
(1+2+3+4+5+6+7+8+9+10)^2 = 55^2 = 3025
:-)