21 July 2025

• curprev 22:0222:02, 21 July 2025 Pojodotcom talk contribs 1,826 bytes −1 →Problem

14 October 2024

• curprev 10:4010:40, 14 October 2024 Lillyliang talk contribs m 1,827 bytes +14 →Solution

21 January 2023

• curprev 03:1803:18, 21 January 2023 Pi is 3.14 talk contribs 1,813 bytes +13 →Video Solution

4 September 2022

• curprev 09:5209:52, 4 September 2022 Mrthinker talk contribs 1,800 bytes +2 →Solution

13 August 2022

• curprev 19:4819:48, 13 August 2022 Nezha33 talk contribs 1,798 bytes 0 →Solution

20 July 2022

• curprev 23:5523:55, 20 July 2022 Miguel00 talk contribs 1,798 bytes +12 →Solution

1 August 2021

• curprev 17:2817:28, 1 August 2021 Kundusne000 talk contribs m 1,786 bytes +14 No edit summary

17 January 2021

• curprev 01:0401:04, 17 January 2021 Pi is 3.14 talk contribs 1,772 bytes +71 →Video Solution

15 January 2021

• curprev 19:4219:42, 15 January 2021 C4raymond talk contribs 1,701 bytes −4 No edit summary
• curprev 19:4119:41, 15 January 2021 C4raymond talk contribs 1,705 bytes +4 No edit summary

31 December 2020

• curprev 21:0221:02, 31 December 2020 Bunny1 talk contribs 1,701 bytes −2 No edit summary
• curprev 21:0221:02, 31 December 2020 Bunny1 talk contribs 1,703 bytes +3 No edit summary

14 April 2020

• curprev 12:3512:35, 14 April 2020 Srisainandan6 talk contribs m 1,700 bytes −49 →Video Solution
• curprev 12:3412:34, 14 April 2020 Srisainandan6 talk contribs 1,749 bytes +49 →Video Solution

2 February 2020

• curprev 13:4813:48, 2 February 2020 Frestho talk contribs m 1,700 bytes −168 →Solution

27 January 2020

• curprev 15:3515:35, 27 January 2020 Shurong.ge talk contribs 1,868 bytes −7 Undo revision 115686 by Shurong.ge (talk) Tag: Undo
• curprev 15:3515:35, 27 January 2020 Shurong.ge talk contribs 1,875 bytes +7 No edit summary
• curprev 15:3215:32, 27 January 2020 Shurong.ge talk contribs 1,868 bytes +4 →Solution

20 January 2020

• curprev 23:5723:57, 20 January 2020 Mprincess0229 talk contribs m 1,864 bytes +14 →Solution
• curprev 23:5623:56, 20 January 2020 Mprincess0229 talk contribs m 1,850 bytes +42 →Solution

17 December 2019

• curprev 15:4615:46, 17 December 2019 Gr8song talk contribs m 1,808 bytes +13 →Solution

5 December 2019

• curprev 00:5400:54, 5 December 2019 Anmol04 talk contribs m 1,795 bytes +13 added "Problem" to the top

26 August 2019

• curprev 12:1712:17, 26 August 2019 Xyab talk contribs m 1,782 bytes −43 →Solution

11 February 2019

• curprev 17:3917:39, 11 February 2019 Firebolt360 talk contribs 1,825 bytes +1 →Solution
• curprev 17:3917:39, 11 February 2019 Firebolt360 talk contribs 1,824 bytes +154 →Solution
• curprev 17:3517:35, 11 February 2019 Firebolt360 talk contribs 1,670 bytes +16 →Solution
• curprev 17:3517:35, 11 February 2019 Firebolt360 talk contribs 1,654 bytes −51 →Solution
• curprev 02:2902:29, 11 February 2019 Gamemaster402 talk contribs 1,705 bytes +63 No edit summary

10 February 2019

• curprev 18:2218:22, 10 February 2019 Ironinja186 talk contribs m 1,642 bytes +76 →Solution

25 September 2018

• curprev 14:4114:41, 25 September 2018 Ironicninja talk contribs 1,566 bytes +49 No edit summary
• curprev 14:3714:37, 25 September 2018 Ironicninja talk contribs 1,517 bytes +27 Original had 21*8 = 189 which is not true. Also, fixed the latex formatting.

23 September 2018

• curprev 14:5014:50, 23 September 2018 Designerd talk contribs 1,490 bytes −2 →Solution
• curprev 14:4914:49, 23 September 2018 Designerd talk contribs 1,492 bytes +93 →Solution

17 February 2018

• curprev 15:1015:10, 17 February 2018 Haha0201 talk contribs 1,399 bytes −4 No edit summary

16 February 2018

• curprev 16:5816:58, 16 February 2018 Coolak talk contribs 1,403 bytes −2 →Solution 1
• curprev 16:5816:58, 16 February 2018 Coolak talk contribs 1,405 bytes +1 No edit summary
• curprev 16:1216:12, 16 February 2018 Benjamin2020 talk contribs 1,404 bytes +76 No edit summary
• curprev 15:3415:34, 16 February 2018 Awesomeag talk contribs 1,328 bytes +399 This is my solution to the problem.
• curprev 15:2815:28, 16 February 2018 Awesomeag talk contribs 929 bytes +155 Work in progress of my answer to this question.
• curprev 15:2215:22, 16 February 2018 Awesomeag talk contribs 774 bytes +267 Work in progress of my answer to this question.
• curprev 13:3513:35, 16 February 2018 Geogirl08 talk contribs 507 bytes +507 Created page with "23. How many ordered pairs <math>(a, b)</math> of positive integers satisfy the equation <cmath>a\cdot b + 63 = 20\cdot \text{lcm}(a, b) + 12\cdot\text{gcd}(a,b),</cmath> whe..."