Talk:2937: Room Code - Revision history

Tr0gd0r: No, seriously: why does this work?!

2024-11-10T20:43:46Z

No, seriously: why does this work?!

172.68.2.101 at 23:14, 25 June 2024

2024-06-25T23:14:44Z

GreatWyrmGold at 04:21, 25 June 2024

2024-06-25T04:21:33Z

172.70.90.65: New comment

2024-06-22T10:09:44Z

New comment

172.70.86.176 at 20:41, 12 June 2024

2024-06-12T20:41:30Z

Cwallenpoole at 18:50, 12 June 2024

2024-06-12T18:50:00Z

Psychoticpotato at 21:20, 11 June 2024

2024-06-11T21:20:03Z

Psychoticpotato at 21:09, 5 June 2024

2024-06-05T21:09:22Z

162.158.140.153 at 14:39, 30 May 2024

2024-05-30T14:39:15Z

172.71.178.195 at 14:10, 29 May 2024

2024-05-29T14:10:18Z

← Older revision		Revision as of 20:43, 10 November 2024
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	So, what about this explanation still needs work? What's incomplete, unclear, or questionably accurate? [[User:GreatWyrmGold\|GreatWyrmGold]] ([[User talk:GreatWyrmGold\|talk]]) 04:21, 25 June 2024 (UTC)		So, what about this explanation still needs work? What's incomplete, unclear, or questionably accurate? [[User:GreatWyrmGold\|GreatWyrmGold]] ([[User talk:GreatWyrmGold\|talk]]) 04:21, 25 June 2024 (UTC)
		+	An answer to the question! Cognitively, neurally: why does this work?!

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 The room code 020518 as listed consists of prime numbers 2 and 5 (with 3 missing). however both are preceded by a zero. The 18 is interpreted as non prime (it is not) but the 2x3x3 seems a bit far off from any prime. Would the alternative explanation 0-5 is a zero followed by the prime number five --- followed by 1 - 8 which is 0+1 and 7+1 which could be logical continuation of 0+0-5+0, 0+1-7+1, followed by e.g. 0+2, 11+2 etc. - as such series sometime go. [[Special:Contributions/172.70.46.193|172.70.46.193]] 14:10, 26 May 2024 (UTC)
 :It may be "far off" from being prime in a factorization sense, but it's quite close to being a prime because it's right next to both 17 and 19, which are both prime. [[User:AdmiralMemo|Admiral Memo]] ([[User talk:AdmiralMemo|talk]]) 11:56, 29 May 2024 (UTC)
 ::What would be interesting would be to find 'twinned Mersennes', i.e. specifically that (2^n)-1 ''and'' (2^n)+1 are both prime. (Currently, I can only identify n=2 as valid for that, but I'm not immediately aware of any reason why (2^n)+1 might not be equally valid as (possible) prime, nor why it might only pair with a non-prime (2^n)-1 'mersenne miss' number.) By the above logic, (2^n) iteself would quite close to being a prime (being another prime-pair's intermediate) whilst being quite conspicuously factorisable to the ''n''th order. [[Special:Contributions/172.71.178.131|172.71.178.131]] 13:57, 29 May 2024 (UTC)

← Older revision		Revision as of 04:21, 25 June 2024
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	It's three prime numbers if you assume two digits per number and base 9. Translating that to base 10 would be: 2, 5, 17 {{unsigned\|Cwallenpoole\|18:50, 12 June 2024}}		It's three prime numbers if you assume two digits per number and base 9. Translating that to base 10 would be: 2, 5, 17 {{unsigned\|Cwallenpoole\|18:50, 12 June 2024}}
		+
		+	So, what about this explanation still needs work? What's incomplete, unclear, or questionably accurate? [[User:GreatWyrmGold\|GreatWyrmGold]] ([[User talk:GreatWyrmGold\|talk]]) 04:21, 25 June 2024 (UTC)

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 ::::In case it helps, I've just [[User talk:42.book.addict#Depends what you wanted to do...|written something, at least so long as that user doesn't delete or change my contribution]] which summarises (badly?) the general gamut of linking options you might need to employ here. It's tuned to explainxkcd usage, rather than the full (in their own way) and perhaps more precise wikipedia standards that the above link gives. And it was written on the spur of the moment, not really so carefully edited. But FYI. [[Special:Contributions/162.158.38.70|162.158.38.70]] 21:04, 25 May 2024 (UTC)
 ::Also related [[1179:_ISO_8601]] --[[Special:Contributions/172.71.160.93|172.71.160.93]] 09:09, 27 May 2024 (UTC)
 wait...so y'all actually don't need help with remembering numbers? oh. I can usually memorize like 10 long strings of random numbers almost instantly by finding patterns through them. order through chaos? [[User:42.book.addict|42.book.addict]] ([[User talk:42.book.addict|talk]]) 02:13, 25 May 2024 (UTC)

← Older revision		Revision as of 20:41, 12 June 2024
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	I remember my 628496 was my room code for a while back at uni, very easy to remember as the first three Perfect Numbers {{unsigned ip\|172.70.163.121\|08:25, 28 May 2024}}		I remember my 628496 was my room code for a while back at uni, very easy to remember as the first three Perfect Numbers {{unsigned ip\|172.70.163.121\|08:25, 28 May 2024}}

−	It's three prime numbers if you assume two digits per number and base 9. Translating that to base 10 would be: 2, 5, 17	+	It's three prime numbers if you assume two digits per number and base 9. Translating that to base 10 would be: 2, 5, 17 {{unsigned\|Cwallenpoole\|18:50, 12 June 2024}}

← Older revision		Revision as of 18:50, 12 June 2024
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	I remember my 628496 was my room code for a while back at uni, very easy to remember as the first three Perfect Numbers {{unsigned ip\|172.70.163.121\|08:25, 28 May 2024}}		I remember my 628496 was my room code for a while back at uni, very easy to remember as the first three Perfect Numbers {{unsigned ip\|172.70.163.121\|08:25, 28 May 2024}}
		+
		+	It's three prime numbers if you assume two digits per number and base 9. Translating that to base 10 would be: 2, 5, 17

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 ::The average hand has less than 5 digits. [[User:SDSpivey|SDSpivey]] ([[User talk:SDSpivey|talk]]) 01:28, 28 May 2024 (UTC)
 :::Average =/= Typical (unless it's a modal average).[[Special:Contributions/172.70.90.177|172.70.90.177]] 08:13, 28 May 2024 (UTC)
 The room code 020518 as listed consists of prime numbers 2 and 5 (with 3 missing). however both are preceded by a zero. The 18 is interpreted as non prime (it is not) but the 2x3x3 seems a bit far off from any prime. Would the alternative explanation 0-5 is a zero followed by the prime number five --- followed by 1 - 8 which is 0+1 and 7+1 which could be logical continuation of 0+0-5+0, 0+1-7+1, followed by e.g. 0+2, 11+2 etc. - as such series sometime go. [[Special:Contributions/172.70.46.193|172.70.46.193]] 14:10, 26 May 2024 (UTC)

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 :The trouble is, most people couldn't do it for this doorcode. It has six digits, but the typical hand only ever has five! [[Special:Contributions/172.69.194.207|172.69.194.207]] 09:03, 26 May 2024 (UTC)
 ::Hello.  My name is Inigo Montoya.  [[Special:Contributions/172.68.194.178|172.68.194.178]] 09:50, 26 May 2024 (UTC)
 ::The average hand has less than 5 digits. [[User:SDSpivey|SDSpivey]] ([[User talk:SDSpivey|talk]]) 01:28, 28 May 2024 (UTC)
 :::Average =/= Typical (unless it's a modal average).[[Special:Contributions/172.70.90.177|172.70.90.177]] 08:13, 28 May 2024 (UTC)

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 :::::Another Brit. Having dealt with transatlantic stuff, I switched to YYYY/MM/DD exclusively due to being utterly fed up with trying to work out when an ambiguous date (like in this example, or the infamous 9th of November) was supposed to be. [[Special:Contributions/172.71.131.158|172.71.131.158]] 21:40, 26 May 2024 (UTC)
 ::::::This particular Brit (also veteran of Y2K, at the same time as regularly "talkin' to 'Merkins" and having to make sure I don't confuzzle them either with what a Rightpondian would write or by them ''assuming'' that I'm writing in Rightpondian when I'm not) continues to tend to use DD/Mmm/YYYY for anything with a human-reading focus. Or something like YYYYMMDD(-hh(mm(ss))), as per RIIW's situational reasoning where dumb alphanumeric ordering might dominate in primarily computer-reading scenarios. [[Special:Contributions/172.69.79.164|172.69.79.164]] 23:32, 26 May 2024 (UTC)
 :::Yes, add me to the "2nd of May" club. (Or whatever young relative I can retrospectively induce to join, anyway.) [[Special:Contributions/172.69.79.165|172.69.79.165]] 22:58, 24 May 2024 (UTC)
 :::Yes, of course DDMMYY is a thing as well (although I would have expected dots or something), I might have mentioned that. Here in Sweden, YYMMDD is very common, along with YYYY-MM-DD, D/M YYYY and YYYYMMDD (the latter increasingly so, very rare before y2k). YY-MM-DD and D/M -YY are rather less common (after y2k). Formats with dots or Roman numerals are almost unheard of, as are middle-endianness and anything with slashes before or after the year. Source: subjective experience.) (Of course, many Swedes also realize that months have names that alleviate ambiguity.) [[Special:Contributions/162.158.134.242|162.158.134.242]] 04:30, 25 May 2024 (UTC)

← Older revision		Revision as of 14:10, 29 May 2024
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	::What would be interesting would be to find 'twinned Mersennes', i.e. specifically that (2^n)-1 ''and'' (2^n)+1 are both prime. (Currently, I can only identify n=2 as valid for that, but I'm not immediately aware of any reason why (2^n)+1 might not be equally valid as (possible) prime, nor why it might only pair with a non-prime (2^n)-1 'mersenne miss' number.) By the above logic, (2^n) iteself would quite close to being a prime (being another prime-pair's intermediate) whilst being quite conspicuously factorisable to the ''n''th order. [[Special:Contributions/172.71.178.131\|172.71.178.131]] 13:57, 29 May 2024 (UTC)		::What would be interesting would be to find 'twinned Mersennes', i.e. specifically that (2^n)-1 ''and'' (2^n)+1 are both prime. (Currently, I can only identify n=2 as valid for that, but I'm not immediately aware of any reason why (2^n)+1 might not be equally valid as (possible) prime, nor why it might only pair with a non-prime (2^n)-1 'mersenne miss' number.) By the above logic, (2^n) iteself would quite close to being a prime (being another prime-pair's intermediate) whilst being quite conspicuously factorisable to the ''n''th order. [[Special:Contributions/172.71.178.131\|172.71.178.131]] 13:57, 29 May 2024 (UTC)

−	I remember my 628496 was my room code for a while back at uni, very easy to remember as the first three Perfect Numbers	+	I remember my 628496 was my room code for a while back at uni, very easy to remember as the first three Perfect Numbers {{unsigned ip\|172.70.163.121\|08:25, 28 May 2024}}