4 November 2025

• curprev 00:5900:59, 4 November 2025 Charleswu talk contribs 8,767 bytes +89 No edit summary

30 June 2024

• curprev 13:1413:14, 30 June 2024 Vadava lx talk contribs m 8,678 bytes +9 →Solution 7

21 June 2023

• curprev 22:0522:05, 21 June 2023 Ab2024 talk contribs 8,669 bytes +500 →Solution 6 (Similar to solution 3)

16 April 2023

• curprev 15:4915:49, 16 April 2023 Bs2012 talk contribs m 8,169 bytes +13 →Solution 1
• curprev 15:4915:49, 16 April 2023 Bs2012 talk contribs 8,156 bytes +112 →Solution 1

14 October 2021

• curprev 13:5513:55, 14 October 2021 Lnzhonglp talk contribs m 8,044 bytes −28 No edit summary

1 July 2021

• curprev 14:0814:08, 1 July 2021 Mobius247 talk contribs m 8,072 bytes +13 →Solution 3

4 June 2021

• curprev 14:1814:18, 4 June 2021 Mobius247 talk contribs 8,059 bytes −9 →Solution 2
• curprev 14:1714:17, 4 June 2021 Mobius247 talk contribs 8,068 bytes +1 →Solution 2
• curprev 14:1614:16, 4 June 2021 Mobius247 talk contribs 8,067 bytes −1 →Solution 2
• curprev 14:1614:16, 4 June 2021 Mobius247 talk contribs 8,068 bytes −2 →Solution 2
• curprev 14:1014:10, 4 June 2021 Mobius247 talk contribs 8,070 bytes 0 →Solution 2
• curprev 14:0914:09, 4 June 2021 Mobius247 talk contribs 8,070 bytes −4 →Solution 2
• curprev 14:0614:06, 4 June 2021 Mobius247 talk contribs 8,074 bytes +13 →Solution 2
• curprev 14:0614:06, 4 June 2021 Mobius247 talk contribs 8,061 bytes 0 →Solution 2
• curprev 14:0614:06, 4 June 2021 Mobius247 talk contribs 8,061 bytes +8 →Solution 2
• curprev 14:0514:05, 4 June 2021 Mobius247 talk contribs 8,053 bytes 0 →Solution 2
• curprev 14:0414:04, 4 June 2021 Mobius247 talk contribs 8,053 bytes +1 →Solution 2
• curprev 14:0414:04, 4 June 2021 Mobius247 talk contribs 8,052 bytes −1 →Solution 2
• curprev 14:0314:03, 4 June 2021 Mobius247 talk contribs 8,053 bytes +1 →Solution 2
• curprev 14:0214:02, 4 June 2021 Mobius247 talk contribs 8,052 bytes +12 →Solution 1

3 January 2021

• curprev 21:2121:21, 3 January 2021 Edogra talk contribs m 8,040 bytes +2 →Solution 5 (Similar to Solution 1)

1 January 2021

• curprev 09:3409:34, 1 January 2021 Charlestang06 talk contribs 8,038 bytes +5,403 →Solution

25 December 2020

• curprev 00:3900:39, 25 December 2020 Dandeliondreams talk contribs m 2,635 bytes +2 →Solution
• curprev 00:3800:38, 25 December 2020 Dandeliondreams talk contribs m 2,633 bytes −1 →Solution
• curprev 00:3700:37, 25 December 2020 Dandeliondreams talk contribs m 2,634 bytes −13 →Solution
• curprev 00:3500:35, 25 December 2020 Dandeliondreams talk contribs m 2,647 bytes +152 →Solution

18 September 2020

• curprev 16:4716:47, 18 September 2020 Brian22 talk contribs m 2,495 bytes +53 →Problem: fixed some LaTeX

26 August 2020

• curprev 10:3810:38, 26 August 2020 Gzgavinzhao talk contribs m 2,442 bytes +26 →Solution 1
• curprev 10:3710:37, 26 August 2020 Gzgavinzhao talk contribs m 2,416 bytes +2 →Solution 1

23 May 2020

• curprev 16:1216:12, 23 May 2020 Smartguy888 talk contribs m 2,414 bytes −28 →Solution 1

15 December 2019

• curprev 18:3718:37, 15 December 2019 Xyab talk contribs m 2,442 bytes −6 →Solution 1
• curprev 18:3518:35, 15 December 2019 Xyab talk contribs m 2,448 bytes +2 →Solution 1

5 December 2019

• curprev 00:3900:39, 5 December 2019 Anmol04 talk contribs m 2,446 bytes +13 added "Problem" to the top

16 February 2019

• curprev 13:1913:19, 16 February 2019 Ganairsm talk contribs 2,433 bytes 0 →Solution

11 January 2019

• curprev 17:4317:43, 11 January 2019 Asdf334 talk contribs 2,433 bytes +99 →Solution 1

10 November 2018

• curprev 21:1921:19, 10 November 2018 Firebolt360 talk contribs 2,334 bytes +32 →Solution 1
• curprev 21:1821:18, 10 November 2018 Firebolt360 talk contribs 2,302 bytes +112 →Solution 1

30 July 2015

• curprev 09:4709:47, 30 July 2015 Npip99 talk contribs m 2,190 bytes +63 →Solution 1
• curprev 09:2809:28, 30 July 2015 Npip99 talk contribs 2,127 bytes +605 →Solution

4 July 2013

• curprev 11:2311:23, 4 July 2013 Nathan wailes talk contribs 1,522 bytes +15 No edit summary

1 August 2012

• curprev 18:2318:23, 1 August 2012 1-1 is 3 talk contribs m 1,507 bytes 0 →Solution

21 February 2012

• curprev 15:2515:25, 21 February 2012 NeilOnnsu talk contribs 1,507 bytes +1,097 added solution
• curprev 14:5114:51, 21 February 2012 NeilOnnsu talk contribs 410 bytes +72 No edit summary

8 January 2012

• curprev 22:2722:27, 8 January 2012 DVA6102 talk contribs m 338 bytes +33 No edit summary

24 July 2011

• curprev 18:4818:48, 24 July 2011 ChiefShoe talk contribs m 305 bytes +83 No edit summary

1 January 2010

• curprev 18:4818:48, 1 January 2010 Msinghal talk contribs 222 bytes −31 No edit summary

22 February 2009

• curprev 16:5116:51, 22 February 2009 MathDork135 talk contribs 253 bytes +253 New page: How many pairs of positive integers (a,b) are there such that a and b have no common factors greater than 1 and: <math>\mathrm frac {a}/{b}</math> + <math>\mathrm frac {14b}/{9a}</math> ...