24 November 2024

• curprev 19:2419:24, 24 November 2024 Evergreeneagle talk contribs 1,916 bytes −1 →Solution 4

31 December 2022

• curprev 04:2304:23, 31 December 2022 Pi is 3.14 talk contribs 1,917 bytes +14 →Video Solution

3 December 2022

• curprev 13:4613:46, 3 December 2022 Saketh101 talk contribs m 1,903 bytes +21 →Solution 4

7 April 2022

• curprev 10:0210:02, 7 April 2022 Hefei417 talk contribs m 1,882 bytes +12 →Solution 4
• curprev 10:0110:01, 7 April 2022 Hefei417 talk contribs 1,870 bytes +337 →Solution 3

27 October 2020

• curprev 19:0619:06, 27 October 2020 Pi is 3.14 talk contribs 1,533 bytes +56 →Solution

11 April 2020

• curprev 23:2323:23, 11 April 2020 Ryjs talk contribs m 1,477 bytes −4 →Solution 3
• curprev 23:2223:22, 11 April 2020 Ryjs talk contribs 1,481 bytes +62 →Solution 3
• curprev 23:1923:19, 11 April 2020 Ryjs talk contribs m 1,419 bytes +4 →Solution 2
• curprev 23:1823:18, 11 April 2020 Ryjs talk contribs 1,415 bytes +29 →Solution 3
• curprev 23:1823:18, 11 April 2020 Ryjs talk contribs 1,386 bytes +399 added solution 3
• curprev 23:1623:16, 11 April 2020 Ryjs talk contribs 987 bytes +4 →Solution 2
• curprev 23:1523:15, 11 April 2020 Ryjs talk contribs 983 bytes +239 →Solution

25 October 2016

• curprev 11:3611:36, 25 October 2016 Rishirai talk contribs m 744 bytes −6 →Solution

24 October 2016

• curprev 11:5211:52, 24 October 2016 Soccerpro101 talk contribs 750 bytes +6 →Solution

4 July 2013

• curprev 23:3623:36, 4 July 2013 Nathan wailes talk contribs 744 bytes +15 No edit summary

30 July 2011

• curprev 19:1519:15, 30 July 2011 Talkinaway talk contribs 729 bytes +469 Added problem, Latex'ed solution, added 'see also' box.

20 June 2011

• curprev 00:1500:15, 20 June 2011 CYAX talk contribs 260 bytes +260 Created page with "Even powers of 19 have a units digit of 1, and odd powers of 19 have a units digit of 9. So, 19^19 has a units digit of 9. Powers of 99 have the exact same property, so 99^99 als..."