Prime Words - Page 2

davar55 · 2008-06-17, 20:38

Quote:

Originally Posted by xilman

Gross?

Ok, so it's not prime, being 3 * 239383973 but, nonetheless, it's a counterexample to your claim.

Point taken. I was of course referring to the "standard" names of
the numbers, and so made a GROSS, possibly erroneous generalization.
(At least it wasn't prime ... though there may be other such words ...)
Thanks for pointing this out.

Uncwilly · 2008-06-17, 21:59

Quote:

Originally Posted by xilman

Gross?

Ok, so it's not prime, being 3 * 239383973 but, nonetheless, it's a counterexample to your claim.

Paul

Mill, couple, Pair, brace, Dozen, Baker's dozen, Score, Gross, Great gross, Myriad, Avogadro's number (& mole) all fail, but are non standard names for numbers. I know that there are about a dozen others in English, however I can lay my hands on a list at present.

Brian-E · 2008-06-17, 22:23

In Dutch the names of numbers will be an excellent source of primes because the majority of all numbers (80% of them, all numbers n for which 20<=n<=99 mod 100) end in the letters ...TIG (...2097).

Edit: I think in German too all numbers n for 20<=n<=99 mod 100 end in IG (97).

michaf · 2008-06-17, 22:53

First to be prime in dutch is: 58
achtenvijftig = 138205142291062097 = prime

I'm betting there is a prime number - prime word too...

Orgasmic Troll · 2008-06-18, 04:41

Sweet, my name is prime

Brian-E · 2008-06-18, 19:51

Quote:

Originally Posted by michaf

First to be prime in dutch is: 58
achtenvijftig = 138205142291062097 = prime

I'm betting there is a prime number - prime word too...

Yes, the first prime in digits and in words in Dutch that I can find is 163:
163 is prime = honderddrieenzestig = 815144518441895514265192097 is prime

Brian-E · 2008-06-18, 21:00

When you have nearly given up trying, you eventually find a prime sentence - but it's really hard work!

whenyouhavenearlygivenuptryingyoueventuallyfindaprimesentencebutitsreallyhardwork
=2385142515218122514511812257922514211620182591472515215225142021112122569144116189135195142051435221209201918511212258118423151811
=prime

Mini-Geek · 2008-06-18, 21:02

Quote:

Originally Posted by Brian-E

When you have nearly given up trying, you eventually find a prime sentence - but it's really hard work!

whenyouhavenearlygivenuptryingyoueventuallyfindaprimesentencebutitsreallyhardwork
=2385142515218122514511812257922514211620182591472515215225142021112122569144116189135195142051435221209201918511212258118423151811
=prime

Wow, that's a big one, and a sentence, and English. Congrats on that find.

Brian-E · 2008-06-18, 21:13

Quote:

Originally Posted by Mini-Geek

Wow, that's a big one, and a sentence, and English. Congrats on that find.

Thanks. You caught the silly TEX characters before I decided against them, LOL.

roger · 2008-06-19, 19:27

twin primes = 20239141618913519 = prime
books = 215151119 = prime
numbers = 142213251819 = not prime

prime numbers = 16189135142213251819 = not prime

Sentances will be interesting...

robo_mojo · 2008-06-20, 00:37

Leaving out the leading zeroes makes the encoded messages ambiguous. It would make more sense to put the leading zeroes in, such as: PRIME = 1618091305 (not prime)

Or, another encoding would be to use ASCII, and then read the word as a big integer, such as:
PRIME = 80, 82, 73, 77, 69
80 * 256^4 + 82 * 256^3 + 73 * 256^2 + 77 * 256 + 69 = 344977919301 (not prime)

In little-endian it would be:
69 * 256^4 + 77 * 256^3 + 73 * 256^2 + 82 * 256 + 80 = 297649394256 (not prime)

2008-06-17, 22:23	#14
Brian-E "Brian" Jul 2007 The Netherlands 7·467 Posts	In Dutch the names of numbers will be an excellent source of primes because the majority of all numbers (80% of them, all numbers n for which 20<=n<=99 mod 100) end in the letters ...TIG (...2097). Edit: I think in German too all numbers n for 20<=n<=99 mod 100 end in IG (97). Last fiddled with by Brian-E on 2008-06-17 at 22:37

2008-06-18, 21:00	#18
Brian-E "Brian" Jul 2007 The Netherlands 7×467 Posts	When you have nearly given up trying, you eventually find a prime sentence - but it's really hard work! whenyouhavenearlygivenuptryingyoueventuallyfindaprimesentencebutitsreallyhardwork =2385142515218122514511812257922514211620182591472515215225142021112122569144116189135195142051435221209201918511212258118423151811 =prime Last fiddled with by Brian-E on 2008-06-18 at 21:03

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2008-06-17, 22:53	#15
michaf Jan 2005 479 Posts	First to be prime in dutch is: 58 achtenvijftig = 138205142291062097 = prime I'm betting there is a prime number - prime word too...

2008-06-18, 04:41	#16
Orgasmic Troll Cranksta Rap Ayatollah Jul 2003 641₁₀ Posts	Sweet, my name is prime

2008-06-19, 19:27	#21
roger Oct 2006 2²·5·13 Posts	twin primes = 20239141618913519 = prime books = 215151119 = prime numbers = 142213251819 = not prime prime numbers = 16189135142213251819 = not prime Sentances will be interesting...

2008-06-20, 00:37	#22
robo_mojo Mar 2008 2⁵ Posts	Leaving out the leading zeroes makes the encoded messages ambiguous. It would make more sense to put the leading zeroes in, such as: PRIME = 1618091305 (not prime) Or, another encoding would be to use ASCII, and then read the word as a big integer, such as: PRIME = 80, 82, 73, 77, 69 80 * 256^4 + 82 * 256^3 + 73 * 256^2 + 77 * 256 + 69 = 344977919301 (not prime) In little-endian it would be: 69 * 256^4 + 77 * 256^3 + 73 * 256^2 + 82 * 256 + 80 = 297649394256 (not prime)