17 October 2025

• curprev 19:3919:39, 17 October 2025 Canvasdancer talk contribs 3,393 bytes −21 →Solution 2 (Brute force)(Advised)(super fast)

6 June 2025

• curprev 17:2917:29, 6 June 2025 Aoum talk contribs 3,414 bytes +50 →Categorized problem

17 February 2025

• curprev 19:0219:02, 17 February 2025 Golden star 123 talk contribs m 3,364 bytes −1 →Solution 1

21 January 2025

• curprev 01:5701:57, 21 January 2025 Terrencez talk contribs 3,365 bytes +9 →Solution 2 (Brute force)(Not Advised)

12 January 2025

• curprev 20:4720:47, 12 January 2025 Ameliaxu0517 talk contribs m 3,356 bytes 0 →Solution 5 (super fast!)
• curprev 20:4720:47, 12 January 2025 Ameliaxu0517 talk contribs m 3,356 bytes +14 →Solution 5

6 January 2025

• curprev 20:3520:35, 6 January 2025 Abirgh talk contribs 3,342 bytes +1 →Solution 5
• curprev 20:3520:35, 6 January 2025 Abirgh talk contribs 3,341 bytes −1 →Solution 5

4 January 2025

• curprev 21:5621:56, 4 January 2025 Spacepandamath13 talk contribs m 3,342 bytes +13 →Solution 2 (Brute force)

29 December 2024

• curprev 20:1720:17, 29 December 2024 Mrfrog talk contribs m 3,329 bytes +2 →Solution 5

18 December 2024

• curprev 22:3822:38, 18 December 2024 Jb2015007 talk contribs 3,327 bytes +12 →Solution 4
• curprev 22:3722:37, 18 December 2024 Jb2015007 talk contribs 3,315 bytes +361 →Solution 4 (If you do not notice that 2^{18}=(2^6)^3=64^3)

15 December 2024

• curprev 17:0617:06, 15 December 2024 Mathlegend23 talk contribs 2,954 bytes +137 →Video Solution by Pi Academy

20 October 2024

• curprev 19:2319:23, 20 October 2024 Stemivy1 talk contribs 2,817 bytes +101 No edit summary

4 January 2024

• curprev 22:4522:45, 4 January 2024 Hunterhan talk contribs m 2,716 bytes −81 →Solution 2 (Brute force) (works only if you have enough time for calculations) (Do not use this in AMC 8)
• curprev 09:1809:18, 4 January 2024 Yoyodai talk contribs m 2,797 bytes +5 →Solution 1
• curprev 09:1709:17, 4 January 2024 Yoyodai talk contribs m 2,792 bytes −5 →Solution 1

28 December 2023

• curprev 13:3013:30, 28 December 2023 Lily2030 talk contribs m 2,797 bytes +2 →Video Solutions

27 December 2023

• curprev 22:1722:17, 27 December 2023 Jzsqueaks talk contribs m 2,795 bytes +2 →Solution 2 (Brute force) (works only if you have enough time for calculations)(Do not use this in AMC8)

9 November 2023

• curprev 23:4523:45, 9 November 2023 Mramazing talk contribs 2,793 bytes −6 →Solution 1

15 October 2023

• curprev 10:5510:55, 15 October 2023 Imsosmartandcool talk contribs 2,799 bytes +6 →Solution 1

15 April 2023

• curprev 18:2218:22, 15 April 2023 Supermathking talk contribs 2,793 bytes +9 →Video Solutions

16 January 2023

• curprev 06:1406:14, 16 January 2023 Happydolphin talk contribs 2,784 bytes −14 →Solution 3 (Guessing)
• curprev 06:1306:13, 16 January 2023 Happydolphin talk contribs 2,798 bytes −23 →Solution 2 (Brute force) (works only if you have enough time for calculations)(Do not use this in AMC8)
• curprev 06:1306:13, 16 January 2023 Happydolphin talk contribs 2,821 bytes −12 →Solution 4 (If you do not notice that 2^{18}=(2^6)^3=64^3)

12 January 2023

• curprev 08:3308:33, 12 January 2023 Nils talk contribs m 2,833 bytes +25 →Solution 2 (Brute force) (works only if you have enough time for calculations)

7 January 2023

• curprev 11:0211:02, 7 January 2023 Saxstreak talk contribs 2,808 bytes +678 No edit summary
• curprev 10:3310:33, 7 January 2023 Saxstreak talk contribs 2,130 bytes −45 →Video Solutions
• curprev 10:3110:31, 7 January 2023 Saxstreak talk contribs m 2,175 bytes +5 →Video Solutions
• curprev 10:3110:31, 7 January 2023 Saxstreak talk contribs m 2,170 bytes 0 →Solution 2 (Brute force) (works only if you have enough time for calculations)
• curprev 10:2810:28, 7 January 2023 Saxstreak talk contribs m 2,170 bytes +2 →Solution 2 (Brute force) (works only if you have enough time for calculations)
• curprev 10:2710:27, 7 January 2023 Saxstreak talk contribs m 2,168 bytes +1 →Solution 1

1 January 2023

• curprev 17:3017:30, 1 January 2023 Gbatkhuu1 talk contribs 2,167 bytes 0 →Solution 2 (Brute force) (works only if you have enough time for calculations)
• curprev 17:3017:30, 1 January 2023 Gbatkhuu1 talk contribs 2,167 bytes +22 →Solution 2 (Brute force) (works only if you have enough time for calculations)
• curprev 17:2917:29, 1 January 2023 Gbatkhuu1 talk contribs 2,145 bytes +30 →Solution 2 (Brute force)

31 December 2022

• curprev 15:5515:55, 31 December 2022 Pi is 3.14 talk contribs m 2,115 bytes +33 →Video Solutions

30 December 2022

• curprev 19:2519:25, 30 December 2022 Lucasyao talk contribs 2,082 bytes −1 →Solution 3 (Guessing)

26 December 2022

• curprev 15:4115:41, 26 December 2022 Robinthebest talk contribs 2,083 bytes +10 →Solution 2 (Brute force) UNRECOMMENDED

22 July 2022

• curprev 14:0814:08, 22 July 2022 A395134 talk contribs 2,073 bytes −195 →Solution 4 (EVEN MORE BRUTE FORCE)

5 July 2022

• curprev 16:0816:08, 5 July 2022 Hxbunny2 talk contribs 2,268 bytes +22 →Solution 4 (EVEN MORE BRUTE FORCE)

6 May 2022

• curprev 02:2302:23, 6 May 2022 Hefei417 talk contribs 2,246 bytes +4 →Solution 4 (EVEN MORE BRUTE FORCE)
• curprev 02:2102:21, 6 May 2022 Hefei417 talk contribs 2,242 bytes +170 →Solution 3 (Guessing)

29 April 2022

• curprev 21:2021:20, 29 April 2022 Supermathking talk contribs 2,072 bytes +45 →Video Solutions

23 February 2022

• curprev 11:2511:25, 23 February 2022 Savannahsolver talk contribs 2,027 bytes +47 →Video Solutions

5 January 2022

• curprev 17:1417:14, 5 January 2022 Mathfun1000 talk contribs m 1,980 bytes +14 No edit summary
• curprev 17:1317:13, 5 January 2022 Mathfun1000 talk contribs m 1,966 bytes +456 No edit summary

4 January 2022

• curprev 20:1420:14, 4 January 2022 Miraclesciencelion talk contribs m 1,510 bytes −8 →Solution 2 (Brute force) UNRECOMMENDED
• curprev 19:3619:36, 4 January 2022 Fanwh29 talk contribs m 1,518 bytes −7 →Solution 2 (Brute force) VERY NOT RECOMMENDED

28 December 2021

• curprev 20:4820:48, 28 December 2021 Ericyuan talk contribs 1,525 bytes +5 →Solution 2 (Brute force) NOT RECOMMENDED

18 September 2021

• curprev 19:4319:43, 18 September 2021 Doulai1 talk contribs 1,520 bytes +14 →Solution 2 (Brute force)