Mersenne Milestone

davar55 · 2008-04-18, 14:59

Recently, Alex Rodriguez (NY Yankee third baseman and slugger)
hit his lifetime home run #521, tying him with Ted Williams and
Willie McCovey on the all-time home run list.

A ho-mer-senne achievement !

(He has since passed that number, which I take as encouragement
that the next Mersenne prime M45 will soon be found.)

davieddy · 2008-04-19, 19:16

M521 is indeed a "Mersenne Milestone" albeit achieved 57 years ago.
The gap from M127 had lasted 75 years.
Notably Alan Turing would have discovered it first, were it not
for the fact that his memory was only 1024 bits.

davar55 · 2010-07-24, 14:17

As of this morning, A-Rod has 599 homers. When he hits the next one,
he'll be the seventh player to reach 600. Of course, this isn't the real
milestone -- we're counting up to #607. Barring a catastrophe, he
should get there in a few weeks. His chances of getting to the next
MP exponent (1279) are, however, rather slim.

Anyone want to check the Total Hits records for Mersenne-ality?

davar55 · 2010-09-08, 19:33

As of today, ARod has hit a total of six hundred five (that's 605) homers
in his major league career. According to extensive calculations, 605 is
not a prime number, so 2^605-1 is also composite. This means that
there is no Mersenneness in his total at the moment. If someone would
check 606 for exclusion of primality, we can jump ahead and anticipate
that 2 homers from now (which may come any day) he'll reach the MM
(Mersenne Milestone) of 607 dingers. No one has done better,
Mersenne-wise. At least in MLB. Number theorist Yankee fans wish
him the best.

davar55 · 2010-09-17, 23:38

Today, 9/17/2010, Alex Rodriguez of the New York Yankees,
batting against the Baltimore Orioles, hit the 607th home run
of his major league career.

2^607 - 1 is the 14th Mersenne Prime.

The long wait is over.

davar55 · 2010-09-18, 02:30

Footnote to previous post: in the same game, ARod hit a SECOND homer
in the ninth inning, a three-run blast that gave the Yankees the lead and
the win, which coupled with the Tampa Bay Rays' loss moments before
put the Yankees back into first place in their division. This was ARod's
608th homer.

2^608 - 1 is composite, not prime.

Unless he gets close to 1279 homers, this story is completed.

Will Mersenne's never cease?

davar55 · 2010-12-19, 15:56

I have a question. How can we designate our GIMPS milestones in advance?

We know that finding (i.e. locating) an MP is an identifiable milestone.
All of us eagerly wait for each such discovery.

Is proving an MP's sequence value a major or minor milestone?
Can we prioritize intermediate milestones in a measured way?

Just suggesting this would be useful for us to know.

cheesehead · 2010-12-19, 22:26

Quote:

Originally Posted by davar55

I have a question. How can we designate our GIMPS milestones in advance?

By following the Yankees, obviously. Or the Red Sox.

davar55 · 2010-12-25, 04:17

Quote:

Originally Posted by cheesehead

By following the Yankees, obviously. Or the Red Sox.

Well, the Red Sox are a good team,
but they don't have the same mersennality
as the new york yankees.

ARod ended the 2010 season with
(I think) 613 lifetime homers.

613 is prime, but 2^613-1 is composite.
What are its factors?

KingKurly · 2010-12-25, 04:38

Quote:

Originally Posted by davar55

613 is prime, but 2^613-1 is composite.
What are its factors?

Isn't it just 333628015107245479, 474640860193534882628078580680807822523991, and 56272943145171606416041974272779967237377245135400982739236727888151415549771970573866251017208467153984404288129453336803370700223?

Or did I totally miss the point? :)

Mini-Geek · 2010-12-25, 11:45

Quote:

Originally Posted by KingKurly

Isn't it just 333628015107245479, 474640860193534882628078580680807822523991, and 56272943145171606416041974272779967237377245135400982739236727888151415549771970573866251017208467153984404288129453336803370700223?

Or did I totally miss the point? :)

Actually, its factors are:

Code:

44599476833089207
332817722770314187794325446534549089
2290082526100134480992198124951512750039139339635155094272008280546850886939008711730865851616722892614369047154769105713048457413017

But I don't get the point either.

2008-04-18, 14:59	#1
davar55 May 2004 New York City 5·7·11² Posts	Mersenne Milestone Recently, Alex Rodriguez (NY Yankee third baseman and slugger) hit his lifetime home run #521, tying him with Ted Williams and Willie McCovey on the all-time home run list. A ho-mer-senne achievement ! (He has since passed that number, which I take as encouragement that the next Mersenne prime M45 will soon be found.)

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2008-04-19, 19:16	#2
davieddy "Lucan" Dec 2006 England 6474₁₀ Posts	M521 is indeed a "Mersenne Milestone" albeit achieved 57 years ago. The gap from M127 had lasted 75 years. Notably Alan Turing would have discovered it first, were it not for the fact that his memory was only 1024 bits.

2010-07-24, 14:17	#3
davar55 May 2004 New York City 5×7×11² Posts	As of this morning, A-Rod has 599 homers. When he hits the next one, he'll be the seventh player to reach 600. Of course, this isn't the real milestone -- we're counting up to #607. Barring a catastrophe, he should get there in a few weeks. His chances of getting to the next MP exponent (1279) are, however, rather slim. Anyone want to check the Total Hits records for Mersenne-ality?

2010-09-08, 19:33	#4
davar55 May 2004 New York City 5·7·11² Posts	As of today, ARod has hit a total of six hundred five (that's 605) homers in his major league career. According to extensive calculations, 605 is not a prime number, so 2^605-1 is also composite. This means that there is no Mersenneness in his total at the moment. If someone would check 606 for exclusion of primality, we can jump ahead and anticipate that 2 homers from now (which may come any day) he'll reach the MM (Mersenne Milestone) of 607 dingers. No one has done better, Mersenne-wise. At least in MLB. Number theorist Yankee fans wish him the best.

2010-09-17, 23:38	#5
davar55 May 2004 New York City 5·7·11² Posts	Today, 9/17/2010, Alex Rodriguez of the New York Yankees, batting against the Baltimore Orioles, hit the 607th home run of his major league career. 2^607 - 1 is the 14th Mersenne Prime. The long wait is over.

2010-09-18, 02:30	#6
davar55 May 2004 New York City 5·7·11² Posts	Footnote to previous post: in the same game, ARod hit a SECOND homer in the ninth inning, a three-run blast that gave the Yankees the lead and the win, which coupled with the Tampa Bay Rays' loss moments before put the Yankees back into first place in their division. This was ARod's 608th homer. 2^608 - 1 is composite, not prime. Unless he gets close to 1279 homers, this story is completed. Will Mersenne's never cease?

2010-12-19, 15:56	#7
davar55 May 2004 New York City 5·7·11² Posts	I have a question. How can we designate our GIMPS milestones in advance? We know that finding (i.e. locating) an MP is an identifiable milestone. All of us eagerly wait for each such discovery. Is proving an MP's sequence value a major or minor milestone? Can we prioritize intermediate milestones in a measured way? Just suggesting this would be useful for us to know.