Shyam Sunder Gupta
IRSE, FIE, FIPWE,
Former Principal Chief Engineer,
North Western Railway, Jaipur, India-302017
email: guptass@rediffmail.com
http://www.shyamsundergupta.com/
What is New? (Update 12 September, 2022) The page on Fascinating Triangular Numbers updated. CYF NO. 49 Comments by Daniel Suteu given. CYF NO. 56 Solution by Alessandro Casini given. CYF NO. 55 Contribution by Al Zimmermann and Maximilian given. |
Do You Know?
√76394 = 276.3946453895... √7639321 = 2763.9321626986... √763932023 = 27639.3202340433... |
Can You Find?CYF NO. 57 A repunit number, which can be represented as difference of two squares in exactly three different ways.email your answer |
Contents
Note: The above topics including many more will be added in due course.
|
My Contributions in Prime CuriosPrime Curios! - site maintained by G. L. Honaker Jr. and Chris Caldwell
|
My Favorite Links
|
![]() (January, 2003) |
![]() (March, 2003) |
![]() (October, 2003) |
Send me e-mail at guptass@rediffmail.com
This page was last updated on 12th September, 2022.
Copyright © 2021-2022 Shyam Sunder Gupta. All rights reserved.