Why?

[Patrick123]

Originally Posted by 99.94

As a result of all those sixes the sponsor (the manufacturer of Johnny Walker whisky) has had to cough up $1 million (US) to a Carribean charity.

And if England is going to pull her socks up, she had better get going. Crushed yesterday by New Zealand.

It's Winter up there, obviously they have not warmed up yet!!!

Regards
Patrick

[davar55]

Why, I just needed a place to post a hobby note,
and happened upon this old miscellaneous hobby thread.

Why? Because I'm eagerly awaiting my nfl team possibly
getting into the superbowl this year if they win their
conference title tomorrow (sunday, 1/23/11).

Go Jets !!

[davieddy]

Originally Posted by davar55

Why, I just needed a place to post a hobby note,
and happened upon this old miscellaneous hobby thread.

Why? Because I'm eagerly awaiting my nfl team possibly
getting into the superbowl this year if they win their
conference title tomorrow (sunday, 1/23/11).

Go Jets !!

Never on a Sunday

[davar55]

Originally Posted by davieddy

Never on a Sunday

Great song, bad philosophy.

[davieddy]

Originally Posted by davar55

Great song, bad philosophy.

Agree om both counts.
Never stopped me!

David

[davar55]

Originally Posted by davar55

Why, I just needed a place to post a hobby note,
and happened upon this old miscellaneous hobby thread.

Why? Because I'm eagerly awaiting my nfl team possibly
getting into the superbowl this year if they win their
conference title tomorrow (sunday, 1/23/11).

Go Jets !!

Oh well.

New York Jets beaten 2011/1/23 by Pittsburgh Steelers.
Final score Steelers 24 Jets 19.

Jets were down 24-0, scored a field goal to be
down 24-3 at halftime, then scored a 7 point TD,
a 2 point safety, and a 7 point TD, only to fail
to score the go-ahead TD.

BTW 2, 3, 7, and 19 are Mersenne Prime Exponents.

But 2^2011 - 1 is not prime.

I wonder how it factors .....

[petrw1]

Originally Posted by davar55

But 2^2011 - 1 is not prime.

I wonder how it factors .....

http://www.mersenne.org/report_expon...&B1=Get+status

[TimSorbet]

Originally Posted by petrw1

http://www.mersenne.org/report_expon...&B1=Get+status

And the 558 digit cofactor is composite, so that's not the whole story. Might be a while before we know any more of its factors, though...

[cmd]

cf

..p base36 | ( 385 )

pylqan8yonlnehgbfkhnovjhzjgr02wvddz4ft1oij2uxzhze6bp6n1711r7stfj1poj2kqspp6d09z7c3pffw74hsgo95j5ys1hqgd7yz4yymicdcobuhau
vqd3zq188sn0gksgnhsjfruqfet2l78g0md4h8f47ltiyaiauvd5fnsafoxppsnv4f5nstox8l65jkzh2jnx6sbvmt4sku46zor1zy4rvdwwzxz3et8ll7ls
wiqtjr5raa0j74ax26rwmnesw1ym43qfbt0dgc48esz0tpfn8mghqbu283rqyw5sygi858wbkbge5t58p1bm77qyg5z2kavyqyy8o6xsxwixfah57ui4ygum
651sapeuq4mdnxzjo7h7qg3hj

[davar55]

Originally Posted by Mini-Geek

And the 558 digit cofactor is composite, so that's not the whole story. Might be a while before we know any more of its factors, though...

Just thought I'd put the two known prime factors here,
saves future lookups.

2^2011-1 = Factored 2171881, 544919289684132720332849364364039531371953

If I count on my fingers correctly, that means

2^2011 - 1 = p7 * p42 * c558

I like to give long primes or composites as five lead digits, five dots,
and five terminal digits, e.g 10^100 - 9 = c100 = 99999.....99991

So the factors are p7 * p42 = 54491.....71953 * c558 = abcde.....vwxyz.

Could someone solve for a,b,c,d,e,v,w,x,y,z ?

[xilman]

Originally Posted by davar55

Just thought I'd put the two known prime factors here,
saves future lookups.

2^2011-1 = Factored 2171881, 544919289684132720332849364364039531371953

If I count on my fingers correctly, that means

2^2011 - 1 = p7 * p42 * c558

I like to give long primes or composites as five lead digits, five dots,
and five terminal digits, e.g 10^100 - 9 = c100 = 99999.....99991

So the factors are p7 * p42 = 54491.....71953 * c558 = abcde.....vwxyz.

Could someone solve for a,b,c,d,e,v,w,x,y,z ?

I can but won't.

Come on --- it's a trivial matter with a multiprecision calculator and not much harder with a simple 10-digit pocket calclulator.

Paul