Is Infinity a number?
Moderator: RichardW
- Rp0thejester
- Donor 2024
- Posts: 2388
- Joined: 11 May 2022, 19:54
- Location: Letchworth
- My Cars: C8 2.2 Hdi Exclusive
- x 807
Re: Is Infinity a number?
Ryan
'99 Xsara 1.6 X (Red) with Sunkissed bonnet. T59 SBX
'54 Astra Estate 1.7DTI (Artic White)
'06 C8 2.2Hdi Exclusive (Aster Grey)
Champion of Where's CitroJim
Yes I ask the stupid questions, because normally it is that simple.
'99 Xsara 1.6 X (Red) with Sunkissed bonnet. T59 SBX
'54 Astra Estate 1.7DTI (Artic White)
'06 C8 2.2Hdi Exclusive (Aster Grey)
Champion of Where's CitroJim
Yes I ask the stupid questions, because normally it is that simple.
- Paul-R
- Donor 2023
- Posts: 6940
- Joined: 07 May 2009, 16:24
- Location: Wirral, NW England; Vaucluse 84, France
- Lexia Available: Yes
- My Cars: 2015 1.6 Blue HDi 120 Peugeot 308 Active SW
2013 2.0 HDi 163 C5 Exclusive Tourer
2003 2.0 HDi 110 C5 Exclusive Estate (Gone)
2001 2.0 HDi 90 Xsara Estate (Gone) - x 1379
Re: Is Infinity a number?
Time to revive this thread. I came across this little snippet of information about it's divisibility (just made that word up!) and the fact it's a whole number which I thought was interesting.
Graham's number is bigger than the googolplex. It's so big, the Universe does not contain enough stuff on which to write its digits: it's literally too big to write. But this number is finite, it's also an whole number, and despite it being so mind-bogglingly huge we know it is divisible by 3 and ends in a 7.
https://plus.maths.org/content/too-big- ... big-graham
Graham's number is bigger than the googolplex. It's so big, the Universe does not contain enough stuff on which to write its digits: it's literally too big to write. But this number is finite, it's also an whole number, and despite it being so mind-bogglingly huge we know it is divisible by 3 and ends in a 7.
https://plus.maths.org/content/too-big- ... big-graham
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
- Paul-R
- Donor 2023
- Posts: 6940
- Joined: 07 May 2009, 16:24
- Location: Wirral, NW England; Vaucluse 84, France
- Lexia Available: Yes
- My Cars: 2015 1.6 Blue HDi 120 Peugeot 308 Active SW
2013 2.0 HDi 163 C5 Exclusive Tourer
2003 2.0 HDi 110 C5 Exclusive Estate (Gone)
2001 2.0 HDi 90 Xsara Estate (Gone) - x 1379
Re: Is Infinity a number?
Another number which I had not heard of before. Not as big as some of the numbers we've discussed but still pretty big. This is the Dedekind number.
Until recently only eight were known about but a ninth has just been found. Apparently it's fiendishly difficult to calculate and its discovery this soon after the eighth one (a mere 32 years ago) was slightly surprising.
D(9), as it's known, is 42 digits long and here it is in its entirety:
286386577668298411128469151667598498812366
More information here: https://phys.org/news/2023-06-ninth-ded ... oblem.html
Until recently only eight were known about but a ninth has just been found. Apparently it's fiendishly difficult to calculate and its discovery this soon after the eighth one (a mere 32 years ago) was slightly surprising.
D(9), as it's known, is 42 digits long and here it is in its entirety:
286386577668298411128469151667598498812366
More information here: https://phys.org/news/2023-06-ninth-ded ... oblem.html
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
- mickthemaverick
- Donor 2024
- Posts: 13665
- Joined: 11 May 2019, 17:56
- Location: Hertford
- My Cars: 70+ former cars (list available) including 11 Citroens, 3 Renaults
Current cars: 2004 Subaru Legacy 2.5 SEn, 1994 Mazda MX3 - x 6066
Re: Is Infinity a number?
I couldn't access the maths site Paul as my anti-virus software declared it to be infected with a phishing virus, however reading through the physics site I found quite interesting but I honestly couldn't help thinking: "Why?"
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
- MattBLancs
- Donor 2024
- Posts: 2538
- Joined: 25 Apr 2022, 09:03
- Location: Leyland, Lancashire, UK
- My Cars: Citroen C5 Tourer 2.2 HDi Exclusive 173 6speed (daily family practical wagon),
Peugeot 406 Coupe SE 2.0 137 5speed (& originally auto), (former daily off the road for some TLC)
Peugeot 206 GTi-HDi 1.6 110 5speed (my wife's daily)
Peugeot 306 HDi Dturbo 2.0 90 5speed (long term project to reinstate inner wings, former daily. Too sentimental to let it go!) - x 1336
-
Onlinemyglaren
- Forum Admin Team
- Posts: 25477
- Joined: 02 Mar 2008, 13:30
- Location: Washington
- My Cars: Mazda 6
Ooops.
Previously:
2009 Honda Civic :(
C5, C5, Xantia, BX, GS, Visa.
R4, R11TXE, R14, R30TX - x 4922
Re: Is Infinity a number?
Is Infinity a number?
Turns out it is a NIssan
Turns out it is a NIssan
- CitroJim
- A very naughty boy
- Posts: 49658
- Joined: 30 Apr 2005, 23:33
- Location: Paggers
- My Cars: Bluebell the AX, Polly the C3 Picasso, Pix the Nissan Pixo, Propel the duathlon bike, TCR Pro the road bike and Fuji the TT bike...
- x 6204
- Contact:
Re: Is Infinity a number?
Infinity is a number... It's a tired 8 lying on its side fast asleep...
Jim
Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...