Silliness Countdown! - Page 9

Steven Lyle Jordan · 05-22-2010, 10:56 PM

41.

Wait...

FlorenceArt · 05-23-2010, 02:20 AM

Oh, no! We'll never get to zero at this rate

GeoffC · 05-23-2010, 04:22 AM

It must be 29 today ?

That's a nice number, it's a prime candidate for a Prime Number.
Wikipedia actually describes 29 very eloquently; describing it as a natural number between 28 and 30 (how profound is that !). The article goes on .....

It is the tenth prime number, and also the fourth primorial prime. It forms a twin prime pair with thirty-one, which is also a primorial prime. Twenty-nine is also the sixth Sophie Germain prime. It is also the sum of three consecutive squares, 22 + 32 + 42. It is a Lucas prime, a Pell prime, and a tetranacci number. It is an Eisenstein prime with no imaginary part and real part of the form 3n − 1. Since 18! + 1 is a multiple of 29 but 29 is not one more than a multiple 18, 29 is a Pillai prime. 29 is also the 10th supersingular prime.

None of the first 29 natural numbers have more than two different prime factors. This is the longest such consecutive sequence.

Twenty-nine is the aliquot sum of the odd discrete biprimes 115 and 187 and is the base of the 29-aliquot tree.

29 is a Markov number, appearing in the solutions to x2 + y2 + z2 = 3xyz: {2, 5, 29}, {2, 29, 169}, {5, 29, 433}, {29, 169, 14701}, etc.

29 is a Perrin number, preceded in the sequence by 12, 17, 22.

Since the greatest prime factor of 292 + 1 = 842 is 421, which is obviously more than 29 twice, 29 is a Størmer number.

Such a simple number ....

Okay, carry on - if it's not a 29 today, then scrub out the above and I'll just slowly sink under the sink and sulk quietly ....

FlorenceArt · 05-23-2010, 04:33 AM

Wow. So many things to know about numbers. Good thing I am not in the least interested. If they have so much to say about 29, it might take a lifetime to get to 100

GeoffC · 05-23-2010, 04:35 AM

Quote:

Originally Posted by FlorenceArt

Wow. So many things to know about numbers. Good thing I am not in the least interested. If they have so much to say about 29, it might take a lifetime to get to 100

I thought you liked Primes ....

Not to worry, though, we should be going down not up ....

FlorenceArt · 05-23-2010, 04:38 AM

I like primes. But 29 is not my favorite.

GeoffC · 05-23-2010, 04:54 AM

... ah ! ....

LCF · 05-23-2010, 05:17 AM

Quote:

Originally Posted by GeoffC

Not to worry, though, we should be going down not up ....

Why?!

FlorenceArt · 05-23-2010, 05:25 AM

Quote:

Originally Posted by LCF

Why?!

Because it's a countdown

GeoffC · 05-23-2010, 06:04 AM

The previous Countdown received 371 posts ... I wonder .....

LCF · 05-23-2010, 06:11 AM

Quote:

Originally Posted by FlorenceArt

Because it's a countdown

Oh. I thought he was misleading us...

GeoffC · 05-23-2010, 06:14 AM

Quote:

Originally Posted by FlorenceArt

Wow. So many things to know about numbers. Good thing I am not in the least interested. If they have so much to say about 29, it might take a lifetime to get to 100

I wuz tidying this up ....

montsnmags · 05-23-2010, 07:58 AM

Quote:

Originally Posted by GeoffC

The previous Countdown received 371 posts ... I wonder .....

Well, if we're counting down, I guess the next number is...

370.

LazyScot · 05-23-2010, 08:12 AM

Quote:

Originally Posted by montsnmags

Well, if we're counting down, I guess the next number is...

370.

No, my cute, silly beanie-wearing monkey. (Why do I suddenly have a feeling of impending doom?)

GeoffC got it right.

29

Though I've never really liked 29. Untrustworth. Full of lies. And it feels it shouldn't be a prime. I think it may have committed numbercide in the early days of the numerical equivalent of the big bang, when the primordial number soup was taking shape and before Sesame Street started transmission. Either that, or it's a hang over from when nine moved. I certainly wouldn't want to be wandering down a dark alley and bump into 29.

FlorenceArt · 05-23-2010, 08:13 AM

Quote:

Originally Posted by LazyScot

Though I've never really liked 29. Untrustworth. Full of lies. And it feels it shouldn't be a prime. I think it may have committed numbercide in the early days of the numerical equivalent of the big bang, when the primordial number soup was taking shape and before Sesame Street started transmission. Either that, or it's a hang over from when nine moved. I certainly wouldn't want to be wandering down a dark alley and bump into 29.

Exactly.

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05-22-2010, 10:56 PM	#121
Steven Lyle Jordan Grand Sorcerer Posts: 8,478 Karma: 5171130 Join Date: Jan 2006 Device: none	41. Wait...

05-23-2010, 02:20 AM	#122
FlorenceArt High Priestess Posts: 5,761 Karma: 5042529 Join Date: Jul 2008 Location: Montreuil sous bois, France Device: iPad Pro 9.7, iPhone 6 Plus	Oh, no! We'll never get to zero at this rate

05-23-2010, 04:22 AM	#123
GeoffC Chocolate Grasshopper ... Posts: 27,599 Karma: 20821184 Join Date: Mar 2008 Location: Scotland Device: Muse HD , Cybook Gen3 , Pocketbook 302 (Black) , Nexus 10: wife has PW	It must be 29 today ? That's a nice number, it's a prime candidate for a Prime Number. Wikipedia actually describes 29 very eloquently; describing it as a natural number between 28 and 30 (how profound is that !). The article goes on ..... It is the tenth prime number, and also the fourth primorial prime. It forms a twin prime pair with thirty-one, which is also a primorial prime. Twenty-nine is also the sixth Sophie Germain prime. It is also the sum of three consecutive squares, 22 + 32 + 42. It is a Lucas prime, a Pell prime, and a tetranacci number. It is an Eisenstein prime with no imaginary part and real part of the form 3n − 1. Since 18! + 1 is a multiple of 29 but 29 is not one more than a multiple 18, 29 is a Pillai prime. 29 is also the 10th supersingular prime. None of the first 29 natural numbers have more than two different prime factors. This is the longest such consecutive sequence. Twenty-nine is the aliquot sum of the odd discrete biprimes 115 and 187 and is the base of the 29-aliquot tree. 29 is a Markov number, appearing in the solutions to x2 + y2 + z2 = 3xyz: {2, 5, 29}, {2, 29, 169}, {5, 29, 433}, {29, 169, 14701}, etc. 29 is a Perrin number, preceded in the sequence by 12, 17, 22. Since the greatest prime factor of 292 + 1 = 842 is 421, which is obviously more than 29 twice, 29 is a Størmer number. Such a simple number .... Okay, carry on - if it's not a 29 today, then scrub out the above and I'll just slowly sink under the sink and sulk quietly ....

05-23-2010, 04:33 AM	#124
FlorenceArt High Priestess Posts: 5,761 Karma: 5042529 Join Date: Jul 2008 Location: Montreuil sous bois, France Device: iPad Pro 9.7, iPhone 6 Plus	Wow. So many things to know about numbers. Good thing I am not in the least interested. If they have so much to say about 29, it might take a lifetime to get to 100

05-23-2010, 04:38 AM	#126
FlorenceArt High Priestess Posts: 5,761 Karma: 5042529 Join Date: Jul 2008 Location: Montreuil sous bois, France Device: iPad Pro 9.7, iPhone 6 Plus	I like primes. But 29 is not my favorite.

05-23-2010, 04:54 AM	#127
GeoffC Chocolate Grasshopper ... Posts: 27,599 Karma: 20821184 Join Date: Mar 2008 Location: Scotland Device: Muse HD , Cybook Gen3 , Pocketbook 302 (Black) , Nexus 10: wife has PW	... ah ! ....

05-23-2010, 06:04 AM	#130
GeoffC Chocolate Grasshopper ... Posts: 27,599 Karma: 20821184 Join Date: Mar 2008 Location: Scotland Device: Muse HD , Cybook Gen3 , Pocketbook 302 (Black) , Nexus 10: wife has PW	The previous Countdown received 371 posts ... I wonder .....