Prime Words

[gd_barnes]

Conjectures = 315141053202118519 is prime

I found this from one of my project names ConjecturesRUs, which has a relatively large first factor: 315141053202118519182119 = 2543 * 3998951963 * 30989347691


G

[gd_barnes]

Originally Posted by roger

twin primes = 20239141618913519 = prime
books = 215151119 = prime
numbers = 142213251819 = not prime
prime numbers = 16189135142213251819 = not prime

Sentances will be interesting...

u is the 21st letter of the English alphabet (not 22nd). v is 22nd. Regardless, it doesn't make a difference here other than the factors found:

numbers = 142113251819 = not prime
prime numbers = 16189135142113251819 = not prime


Gary

[gd_barnes]

Originally Posted by davar55

Here's a negative result:
NO NUMBERS ARE PRIME! (at least not in English).
None of their names end in A,C,G,I,K,M,Q,S,U, or W.

If you make them plural, there are many of them:

fours = 615211819 is prime
tens = 2051419 is prime
elevens = 51252251419 is prime
thirtyfours = 2089182025615211819 is prime
thirtysixes = 208918202519924519 is prime

checked up to 40

Note that the plural of forty is, of course, forties, not fortys. The same applies to any multiple of 10 that is not == (10 mod 100).


Gary

[victor]

You should watch this : http://www.youtube.com/watch?v=UY1P-9xj_GA from 00:13:00

It's related to this thread.