27 October 2025

• curprev 23:5323:53, 27 October 2025 MRENTHUSIASM talk contribs 4,017 bytes −38 →Solution 5 (Prime Factorization)
• curprev 23:5323:53, 27 October 2025 MRENTHUSIASM talk contribs 4,055 bytes −38 →Solution 3 (Symmetry with Generalization)
• curprev 23:2623:26, 27 October 2025 MRENTHUSIASM talk contribs 4,093 bytes +2 →Solution 7 (Brute force)
• curprev 21:0821:08, 27 October 2025 Shunyipanda talk contribs 4,091 bytes +227 No edit summary

7 October 2021

• curprev 23:1223:12, 7 October 2021 MRENTHUSIASM talk contribs m 3,864 bytes −77 →Solution 3 (Symmetry with Generalization)

4 October 2021

• curprev 23:4823:48, 4 October 2021 MRENTHUSIASM talk contribs m 3,941 bytes 0 No edit summary

5 July 2021

• curprev 20:2720:27, 5 July 2021 MRENTHUSIASM talk contribs m 3,941 bytes 0 →Solution 4 (Symmetry with Generalization)
• curprev 20:0120:01, 5 July 2021 MRENTHUSIASM talk contribs m 3,941 bytes −79 →Solution 4 (Symmetry with Generalization)

28 June 2021

• curprev 13:2213:22, 28 June 2021 MRENTHUSIASM talk contribs m 4,020 bytes −1 →Solution 6 (Observations)
• curprev 13:2113:21, 28 June 2021 MRENTHUSIASM talk contribs 4,021 bytes +269 →Solution 5 (Prime Factorizations)
• curprev 13:0313:03, 28 June 2021 MRENTHUSIASM talk contribs m 3,752 bytes +1 →Solution 4 (Symmetry with Generalization)
• curprev 13:0213:02, 28 June 2021 MRENTHUSIASM talk contribs m 3,751 bytes −3 Undo revision 156961 by MRENTHUSIASM (talk) Tag: Undo
• curprev 13:0113:01, 28 June 2021 MRENTHUSIASM talk contribs m 3,754 bytes +3 →Solution 4 (Symmetry with Generalization)
• curprev 12:4912:49, 28 June 2021 MRENTHUSIASM talk contribs m 3,751 bytes −1 →Solution 4 (Symmetry with Generalization)
• curprev 12:4912:49, 28 June 2021 MRENTHUSIASM talk contribs 3,752 bytes +475 →Solution 4 (Symmetry with Generalization)
• curprev 12:2412:24, 28 June 2021 MRENTHUSIASM talk contribs 3,277 bytes −253 I title all solutions, remove duplicated solutions, and rearrange the solutions based on education values. If anyone disagrees, I am happy to discuss these edits in private-messages. Hope that I won't offend anyone.

2 July 2019

• curprev 11:5511:55, 2 July 2019 Qwertysri987 talk contribs 3,530 bytes +401 →Solution 6

12 December 2018

• curprev 22:0822:08, 12 December 2018 Mathlete2017 talk contribs 3,129 bytes +2 →Solution 5

27 July 2018

• curprev 07:5807:58, 27 July 2018 Lilcritters talk contribs 3,127 bytes 0 →Solution 6
• curprev 07:5707:57, 27 July 2018 Lilcritters talk contribs m 3,127 bytes 0 →Solution 5

1 April 2018

• curprev 23:0523:05, 1 April 2018 Novus677 talk contribs 3,127 bytes +137 →Solution 4

4 March 2018

• curprev 01:5001:50, 4 March 2018 Novus677 talk contribs 2,990 bytes −1 →Solution 5
• curprev 01:4901:49, 4 March 2018 Novus677 talk contribs 2,991 bytes −256 →Solution 5

14 July 2017

• curprev 14:5514:55, 14 July 2017 Vrjmath talk contribs m 3,247 bytes +335 →Solution 5
• curprev 14:5214:52, 14 July 2017 Vrjmath talk contribs 2,912 bytes +8 →Solution 5
• curprev 14:5114:51, 14 July 2017 Vrjmath talk contribs m 2,904 bytes +197 →Solution

23 April 2017

• curprev 10:4710:47, 23 April 2017 Matrix math talk contribs 2,707 bytes −1 →Solution 1

5 August 2016

• curprev 19:0819:08, 5 August 2016 M1234567 talk contribs 2,708 bytes +88 More efficient solution

4 July 2013

• curprev 18:1218:12, 4 July 2013 Nathan wailes talk contribs 2,620 bytes +15 No edit summary

8 March 2013

• curprev 22:1722:17, 8 March 2013 EAron talk contribs 2,605 bytes +31 →Solution 2

22 August 2012

• curprev 16:4216:42, 22 August 2012 El Ectric talk contribs m 2,574 bytes +121 →Solution 4

21 August 2012

• curprev 08:0008:00, 21 August 2012 Talkinaway talk contribs 2,453 bytes 0 →Solution 4
• curprev 07:5907:59, 21 August 2012 Talkinaway talk contribs 2,453 bytes +1,698 →Solution

27 December 2008

• curprev 14:2214:22, 27 December 2008 Misof talk contribs m 755 bytes +2 →Solution 2
• curprev 14:2114:21, 27 December 2008 Misof talk contribs 753 bytes +313 alternate solution

25 November 2007

• curprev 12:5612:56, 25 November 2007 Azjps talk contribs m 440 bytes +39 c

26 February 2007

• curprev 19:2719:27, 26 February 2007 Azjps talk contribs m 401 bytes −2 fmt, box

25 February 2007

• curprev 21:3221:32, 25 February 2007 Nrz talk contribs 403 bytes +224 No edit summary

24 February 2007

• curprev 21:5021:50, 24 February 2007 Minsoens talk contribs m 179 bytes +109 No edit summary

9 July 2006

• curprev 17:1317:13, 9 July 2006 Joml88 talk contribs 70 bytes +70 No edit summary