3 November 2025

• curprev 22:1222:12, 3 November 2025 Wawasd talk contribs m 12,255 bytes +11 →Video Solution by TheBeautyofMath

20 October 2025

• curprev 08:5308:53, 20 October 2025 Luke22 talk contribs 12,244 bytes −9 →Solution 2

11 October 2025

• curprev 14:1314:13, 11 October 2025 Just another... talk contribs m 12,253 bytes +9 →Solution 2

3 November 2024

• curprev 11:3111:31, 3 November 2024 Cyberhacker talk contribs 12,244 bytes +1,927 I added my own solution (Solution 11) to this problem.

22 September 2024

• curprev 21:2421:24, 22 September 2024 Hi2937 talk contribs 10,317 bytes +11 →Solution 10 (Infinite Geometric Sequence 2)
• curprev 21:2421:24, 22 September 2024 Hi2937 talk contribs 10,306 bytes +108 →Solution 10 (Infinite Geometric Sequence 2): minor edit for correction
• curprev 21:2221:22, 22 September 2024 Hi2937 talk contribs 10,198 bytes +1,750 new solution

11 July 2024

• curprev 15:5915:59, 11 July 2024 Goldroman talk contribs 8,448 bytes +1 →Solution 3
• curprev 15:5915:59, 11 July 2024 Goldroman talk contribs 8,447 bytes −3 →Solution 3

10 November 2023

• curprev 16:4816:48, 10 November 2023 Tigertan talk contribs 8,450 bytes −1 →Solution 9
• curprev 16:4816:48, 10 November 2023 Tigertan talk contribs 8,451 bytes 0 →Solution 8
• curprev 16:4816:48, 10 November 2023 Tigertan talk contribs m 8,451 bytes 0 →Solution 7 (Complementary + PIE)
• curprev 16:4716:47, 10 November 2023 Tigertan talk contribs 8,451 bytes −739 No edit summary
• curprev 16:4616:46, 10 November 2023 Tigertan talk contribs 9,190 bytes −794 No edit summary
• curprev 16:4516:45, 10 November 2023 Tigertan talk contribs 9,984 bytes +220 →Solution 1

19 October 2023

• curprev 23:3723:37, 19 October 2023 Thestudyofeverything talk contribs 9,764 bytes +117 →Solution 10

27 September 2023

• curprev 21:0721:07, 27 September 2023 Mrthinker talk contribs 9,647 bytes +21 →Solution 8 (Complementary + PIE)
• curprev 21:0121:01, 27 September 2023 Mrthinker talk contribs 9,626 bytes +72 →Solution 1

29 April 2023

• curprev 15:4315:43, 29 April 2023 Hypebeast1 talk contribs 9,554 bytes +1 No edit summary
• curprev 15:4315:43, 29 April 2023 MRENTHUSIASM talk contribs m 9,553 bytes −1 →Problem
• curprev 15:4215:42, 29 April 2023 Hypebeast1 talk contribs 9,554 bytes +12 →Solution 10
• curprev 15:4115:41, 29 April 2023 Hypebeast1 talk contribs 9,542 bytes +579 No edit summary

8 November 2022

• curprev 22:2522:25, 8 November 2022 Agentdabber talk contribs m 8,963 bytes −1 →Solution 19

28 October 2022

• curprev 22:2722:27, 28 October 2022 Pi is 3.14 talk contribs 8,964 bytes +78 No edit summary

25 October 2022

• curprev 01:2601:26, 25 October 2022 Aliciawu talk contribs 8,886 bytes +68 →Solution 8 (Complementary + PIE)
• curprev 01:2401:24, 25 October 2022 Aliciawu talk contribs 8,818 bytes +482 →Solution 8 (Complementary + PIE)
• curprev 01:1601:16, 25 October 2022 Aliciawu talk contribs 8,336 bytes +25 →Solution 8 (Complementary + PIE)
• curprev 01:1501:15, 25 October 2022 Aliciawu talk contribs 8,311 bytes +97 →Solution 8 (Complementary + PIE)
• curprev 01:1201:12, 25 October 2022 Aliciawu talk contribs 8,214 bytes +298 →Solution 2a (same as 2 but with more explanation)

31 October 2021

• curprev 18:2918:29, 31 October 2021 Borealbear talk contribs m 7,916 bytes +9 →Solution 5

19 September 2021

• curprev 18:4418:44, 19 September 2021 Coolmath 2018 talk contribs 7,907 bytes +16 No edit summary
• curprev 18:4318:43, 19 September 2021 Coolmath 2018 talk contribs 7,891 bytes +300 No edit summary

3 August 2021

• curprev 01:4901:49, 3 August 2021 Jske25 talk contribs 7,591 bytes −51 →Solution 6 (Infinite Geometric Sequence Method)

17 July 2021

• curprev 06:2206:22, 17 July 2021 Somebodyyouusedtoknow talk contribs m 7,642 bytes +39 →Solution 7
• curprev 06:2106:21, 17 July 2021 Somebodyyouusedtoknow talk contribs m 7,603 bytes +1 →Solution 6 (same as solution 1 but with a little more of explanation)

17 June 2021

• curprev 18:4818:48, 17 June 2021 Abhinavg0627 talk contribs m 7,602 bytes −13 →Solution 3 (Quicksolve)

25 May 2021

• curprev 19:2419:24, 25 May 2021 Cellsecret talk contribs 7,615 bytes +162 →Video Solution by TheBeautyofMath

26 April 2021

• curprev 21:1821:18, 26 April 2021 Jske25 talk contribs 7,453 bytes +51 →Solution 6 (Infinite Geometric Sequence Method)

3 April 2021

• curprev 19:1919:19, 3 April 2021 Jske25 talk contribs 7,402 bytes +1 →Solution 6 (Infinite Geometric Sequence Method)
• curprev 11:3811:38, 3 April 2021 Awesomek talk contribs 7,401 bytes 0 →Solution 7
• curprev 11:3711:37, 3 April 2021 Awesomek talk contribs 7,401 bytes +700 No edit summary

30 March 2021

• curprev 14:1314:13, 30 March 2021 Jske25 talk contribs 6,701 bytes +1,540 No edit summary

8 March 2021

• curprev 17:4117:41, 8 March 2021 MRENTHUSIASM talk contribs 5,161 bytes +5,115 Undo revision 148929 by Sugar rush (talk)I have strong reason to believe that #18 is not a duplicating question (from many resources I found online. Please contact MAA directly if want change Tags: Removed redirect Undo
• curprev 15:3915:39, 8 March 2021 Sugar rush talk contribs 46 bytes −5,115 This problem was equal to the 12B #16 Tag: New redirect
• curprev 15:1015:10, 8 March 2021 Ike.chen talk contribs 5,161 bytes −44 →Solution 4
• curprev 15:0915:09, 8 March 2021 Ike.chen talk contribs 5,205 bytes +297 →Solution 4

2 March 2021

• curprev 07:5307:53, 2 March 2021 MRENTHUSIASM talk contribs m 4,908 bytes +28 Added in the "See Also" and MAA Notice.

22 February 2021

• curprev 17:1317:13, 22 February 2021 Math31415926535 talk contribs 4,880 bytes 0 →Solution 6(same as solution 1 but with a little more of explanation)
• curprev 17:1317:13, 22 February 2021 Math31415926535 talk contribs 4,880 bytes +793 No edit summary

19 February 2021

• curprev 05:4805:48, 19 February 2021 Icematrix talk contribs m 4,087 bytes +86 No edit summary