Friendly number: Revision history

12 June 2024

• curprev 09:2309:23, 12 June 2024‎ 86.16.237.51 talk‎ 15,212 bytes −41‎ Undid revision 1228488690 by 2600:1700:27B0:6140:E1AD:59B8:6123:6456 (talk) undo Tag: Undo

11 June 2024

• curprev 14:1814:18, 11 June 2024‎ 2600:1700:27b0:6140:e1ad:59b8:6123:6456 talk‎ 15,253 bytes +41‎ No edit summary undo Tags: Reverted Mobile edit Mobile web edit

9 April 2024

• curprev 21:0121:01, 9 April 2024‎ 14.139.215.81 talk‎ 15,212 bytes −309‎ →‎Solitary numbers undo Tag: references removed

3 March 2024

• curprev 14:1014:10, 3 March 2024‎ Citation bot talk contribs‎ 15,521 bytes −20‎ Altered url. URLs might have been anonymized. Added date. | Use this bot. Report bugs. | Suggested by LeapTorchGear | Category:Integer sequences | #UCB_Category 36/220 undo

10 January 2024

• curprev 15:4215:42, 10 January 2024‎ 129.104.241.214 talk‎ 15,541 bytes +98‎ →‎Examples undo

22 September 2023

• curprev 17:0917:09, 22 September 2023‎ 14.139.215.81 talk‎ 15,443 bytes −88‎ No edit summary undo Tags: Visual edit Mobile edit Mobile web edit
• curprev 17:0617:06, 22 September 2023‎ 14.139.215.81 talk‎ 15,531 bytes +313‎ No edit summary undo Tags: Visual edit Mobile edit Mobile web edit

5 September 2023

• curprev 16:1116:11, 5 September 2023‎ Arjayay talk contribs‎ m 15,218 bytes −79‎ Rm reference citing IOSRJournals - a predatory publisher, not a reliable source undo
• curprev 14:3014:30, 5 September 2023‎ 14.139.215.81 talk‎ 15,297 bytes −2‎ →‎Solitary numbers undo Tags: Mobile edit Mobile web edit
• curprev 14:2814:28, 5 September 2023‎ 14.139.215.81 talk‎ 15,299 bytes +204‎ →‎Solitary numbers undo Tags: Mobile edit Mobile web edit

26 July 2023

• curprev 15:5315:53, 26 July 2023‎ Ertoe talk contribs‎ 15,095 bytes +202‎ added reference undo

1 July 2023

• curprev 17:5317:53, 1 July 2023‎ 80.71.142.78 talk‎ 14,893 bytes −2‎ standard spacing in subscript "negative one" undo

12 December 2022

• curprev 22:0222:02, 12 December 2022‎ 80.71.142.78 talk‎ 14,895 bytes −1,548‎ →‎Status for small n: change table code, make color contrast much much easier to see, remove template about bad color use undo

6 December 2022

• curprev 13:5713:57, 6 December 2022‎ 185.118.40.1 talk‎ 16,443 bytes +1‎ →‎Large clubs: update for 9-perfect numbers (same source) undo

18 November 2022

• curprev 06:2006:20, 18 November 2022‎ Citation bot talk contribs‎ 16,442 bytes +19‎ Add: date. | Use this bot. Report bugs. | Suggested by Whoop whoop pull up | #UCB_webform 78/1636 undo

18 January 2022

• curprev 18:3518:35, 18 January 2022‎ Willondon talk contribs‎ 16,423 bytes −10‎ Undid revision 1066510152 by 2A01:4C8:1409:5AB8:1:2:B843:B3C (talk); stray text undo Tag: Undo
• curprev 18:1818:18, 18 January 2022‎ 2a01:4c8:1409:5ab8:1:2:b843:b3c talk‎ 16,433 bytes +10‎ No edit summary undo Tags: Reverted Mobile edit Mobile web edit

21 November 2021

• curprev 18:0518:05, 21 November 2021‎ 80.71.142.78 talk‎ 16,423 bytes +33‎ →‎Examples: also the smallest example of deficient friendly numbers undo
• curprev 11:4011:40, 21 November 2021‎ 80.71.142.78 talk‎ 16,390 bytes +130‎ Undid revision 1055039341 by XLinkBot (talk) -- but changed to another URL that embeds the YouTube resource undo Tag: reverting anti-vandal bot

15 November 2021

• curprev 04:0104:01, 15 November 2021‎ J6M8 talk contribs‎ 16,260 bytes +370‎ Added n=2000 plots of sigma(n) and sigma(n)/n undo Tag: Visual edit

13 November 2021

• curprev 13:3513:35, 13 November 2021‎ XLinkBot talk contribs‎ 15,890 bytes −111‎ BOT--Reverting link addition(s) by 80.71.142.78 to revision 1054980683 (www.youtube.com/watch?v=KZ1BVlURwfI [\byoutube\.com]) undo Tag: Manual revert
• curprev 13:3413:34, 13 November 2021‎ 80.71.142.78 talk‎ 16,001 bytes +111‎ →‎References: A video about the number 10 undo Tag: Reverted
• curprev 03:3203:32, 13 November 2021‎ LucasBrown talk contribs‎ m 15,890 bytes 0‎ →‎Examples undo

11 November 2021

• curprev 22:4122:41, 11 November 2021‎ Dinoguy1000 talk contribs‎ 15,890 bytes +177‎ →‎Status for small n: table is inaccessible undo

25 October 2021

• curprev 21:4321:43, 25 October 2021‎ Elemimele talk contribs‎ 15,713 bytes 0‎ →‎Status for small n: updating capitalisation following my last edit undo
• curprev 21:4221:42, 25 October 2021‎ Elemimele talk contribs‎ 15,713 bytes +20‎ →‎Status for small n: without this extra text, a reader who doesn't know about numbers, and has just come across the term "friendly numbers", may be wondering if there are also such things as "blue numbers" defined in some algebraic way undo

18 May 2021

• curprev 00:1400:14, 18 May 2021‎ 74.96.192.195 talk‎ 15,693 bytes −15‎ →‎Status for small n: fixed grammar mistake undo Tags: Mobile edit Mobile web edit

17 May 2021

• curprev 19:4919:49, 17 May 2021‎ 74.96.192.195 talk‎ 15,708 bytes −20‎ fixed link to wrong page undo Tags: Mobile edit Mobile web edit

5 March 2021

• curprev 20:3120:31, 5 March 2021‎ PrimeHunter talk contribs‎ 15,728 bytes +1‎ Undid revision 1010489405 by Hiplasd (talk) undo Tag: Undo
• curprev 19:0819:08, 5 March 2021‎ Hiplasd talk contribs‎ m 15,727 bytes −1‎ No edit summary undo Tag: Reverted

14 January 2021

• curprev 12:4512:45, 14 January 2021‎ Yobot talk contribs‎ m 15,728 bytes −2‎ FIx REFPUNCT + other minor fixes undo Tag: AWB
• curprev 12:0912:09, 14 January 2021‎ Monkbot talk contribs‎ m 15,730 bytes +2‎ Task 18 (cosmetic): eval 4 templates: hyphenate params (2×); undo Tag: AWB

23 December 2020

• curprev 18:5518:55, 23 December 2020‎ Tarnoob talk contribs‎ 15,728 bytes −25‎ →‎References: cat. undo

2 December 2020

• curprev 07:4007:40, 2 December 2020‎ 2601:248:680:45a0:d5b2:e571:a795:2471 talk‎ 15,753 bytes +22‎ Undid revision 991632661 by 2600:1700:1150:B8C0:F5F6:3E2B:208E:A4AB (talk) undo Tag: Undo
• curprev 07:3607:36, 2 December 2020‎ 2601:248:680:45a0:d5b2:e571:a795:2471 talk‎ 15,731 bytes −411‎ Remove an unencyclopedic and inconsistent example. undo

1 December 2020

• curprev 01:5001:50, 1 December 2020‎ 2600:1700:1150:b8c0:f5f6:3e2b:208e:a4ab talk‎ 16,142 bytes +389‎ I gave a VERY GOOD EXP> undo Tags: Reverted Visual edit

17 July 2020

• curprev 11:0511:05, 17 July 2020‎ Trappist the monk talk contribs‎ m 15,753 bytes +9‎ →‎Solitary numbers: repair cs1 templates with unsupported parameters; (1× encyclopedia) undo Tag: AWB

10 July 2020

• curprev 08:3708:37, 10 July 2020‎ Ich talk contribs‎ 15,744 bytes +215‎ ref work. Add: doi, pages, issue, volume, year, journal, title, jstor, encyclopedia, author pars. 1-3. Removed URL that duplicated unique identifier. Removed parameters. Some additions/deletions were actually parameter name changes. | You can use this tool yourself. Report bugs here. | via #UCB_Gadget undo

9 July 2020

• curprev 20:3220:32, 9 July 2020‎ 92.184.107.83 talk‎ 15,529 bytes 0‎ Correct the abbreviation undo

19 February 2020

• curprev 15:5315:53, 19 February 2020‎ 192.30.95.87 talk‎ 15,529 bytes +1‎ →‎Examples undo

8 February 2020

• curprev 19:3819:38, 8 February 2020‎ Bellowhead678 talk contribs‎ m 15,528 bytes +1‎ desity->density - Fix a typo in one click undo Tags: Mobile edit Mobile web edit Advanced mobile edit

12 January 2020

• curprev 18:0618:06, 12 January 2020‎ 80.71.142.78 talk‎ 15,527 bytes +1,172‎ asymptotic density undo

27 December 2019

• curprev 14:1914:19, 27 December 2019‎ Viewmont Viking talk contribs‎ 14,355 bytes −184‎ Spam undo
• curprev 14:0014:00, 27 December 2019‎ Souravpatra7 talk contribs‎ 14,539 bytes +1‎ →‎Notes undo
• curprev 13:5813:58, 27 December 2019‎ Souravpatra7 talk contribs‎ 14,538 bytes +183‎ →‎Notes undo

27 October 2019

• curprev 00:2100:21, 27 October 2019‎ Bubba73 talk contribs‎ m 14,355 bytes −3‎ Reverted 1 edit by 134.41.95.23 (talk) to last revision by DKMell (TW) undo Tag: Undo
• curprev 00:1700:17, 27 October 2019‎ 134.41.95.23 talk‎ 14,358 bytes +3‎ 2=4 undo Tags: reference list removal Mobile edit Mobile web edit

5 August 2019

• curprev 22:0522:05, 5 August 2019‎ DKMell talk contribs‎ m 14,355 bytes +23‎ →‎Solitary numbers: fixed some wording undo Tag: Visual edit

23 April 2019

• curprev 22:0722:07, 23 April 2019‎ 80.71.142.78 talk‎ 14,332 bytes −13‎ →‎Solitary numbers: remove "(as of 2009)"; it is still true as of 2019 and does not need a year (extremely unlikely to change over the lifetime of Wikipedia) undo

5 April 2019

• curprev 21:1621:16, 5 April 2019‎ Jauerback talk contribs‎ 14,345 bytes −23‎ see WP:NOTED, MOS:NOTED, and WP:OPED undo