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Search: Posts Made By: MattcAnderson
Forum: MattcAnderson 2021-09-23, 14:05
Replies: 8
Views: 512
Posted By MattcAnderson
Hi sweety439 and all, I learned a new...

Hi sweety439 and all,

I learned a new phrase, "natural density" from Wikipedia. It is an open problem whether or not f(n) = n^2+n+41 is a prime number for an infinite number of positive integers...
Forum: Soap Box 2021-09-23, 13:25
Replies: 128
Views: 14,634
Posted By MattcAnderson
Hi all, There are several rivers that flow...

Hi all,

There are several rivers that flow into Phoenix, Arizona.
These include the Salt River, the Gila River, and the Green River.

Most of Phoenix's water comes from the Salt River Project,...
Forum: MattcAnderson 2021-09-23, 10:34
Replies: 6
Views: 468
Posted By MattcAnderson
Smile more calculations

Hi again all,

I have probably done over 50 quick calculations for factordb.com. In My Humble Opinion, this is a useful database. Now we know that a C74 is a P22 times a P24 times a P29. ...
Forum: MattcAnderson 2021-09-18, 05:20
Replies: 41
Views: 2,188
Posted By MattcAnderson
Thumbs up Hi all, Today's favorite Mega number is...

Hi all,

Today's favorite Mega number is 4,692,781.

It's full prime factorization is 2677*1753.

Regards,
Matt
Forum: MattcAnderson 2021-09-17, 01:19
Replies: 0
Views: 97
Posted By MattcAnderson
Mentos and Coke

Hi all, this is a good one.

I combined Mentos Mint with Diet Coke to make a wonderful fizz. Look at my pictures.

I am not the first person to try this.

Even this scholastic website shows...
Forum: MattcAnderson 2021-09-16, 08:14
Replies: 41
Views: 2,188
Posted By MattcAnderson
Smile Hi again all, Today's favorite mega number...

Hi again all,

Today's favorite mega number is 2,456,921.

My computer has Maple software, so, with the ifactor() command, I can see this number has full prime factorization of 53*151*307.
...
Forum: Lounge 2021-09-15, 13:41
Replies: 57
Views: 5,337
Posted By MattcAnderson
eschewed eggs small chewy happy effort wall...

eschewed

eggs small chewy happy effort wall east dog

messages
Forum: MattcAnderson 2021-09-15, 03:24
Replies: 41
Views: 2,188
Posted By MattcAnderson
Hi all, Today's favorite mega number is...

Hi all,

Today's favorite mega number is 3,157,793.

My computer tool, Maple, tells us that this number has a full prime factorization of 53*59581.

Regards,
Matt
Forum: And now for something completely different 2021-09-13, 00:43
Replies: 26
Views: 1,841
Posted By MattcAnderson
Smile Hi all, Thanks to Norman Luhn, for copying...

Hi all,

Thanks to Norman Luhn, for copying my Prime Constellations web page and hosting it on the internet.
My stuff is one of the links at this address
http://www.pzktupel.de/Links.html
...
Forum: MattcAnderson 2021-09-09, 06:18
Replies: 0
Views: 54
Posted By MattcAnderson
polynomial formula

Hi all,

Linear equations can be written as y=m*x+b.
This can be graphed as a straight line on an x y axis.

Quadratic equations graph as parabolas.
The general form of a quadratic (or second...
Forum: MattcAnderson 2021-09-09, 04:25
Replies: 41
Views: 2,188
Posted By MattcAnderson
Smile Hi all, Today's mega number is 3,152,781 ...

Hi all,

Today's mega number is 3,152,781

And due to a modern computer tool we can see that this number can be written as 3*3*137*2557.

Matt
Forum: MattcAnderson 2021-09-08, 04:00
Replies: 41
Views: 2,188
Posted By MattcAnderson
Smile Hi there again, Check out this mega prime...

Hi there again,

Check out this mega prime 1,753,961.

My tool tells me that the full prime factorization is 11*317*503.

Regards,

Matt
Forum: FactorDB 2021-09-07, 14:20
Replies: 15
Views: 1,784
Posted By MattcAnderson
Yes Happy5214, I take numbers from under the...

Yes Happy5214,

I take numbers from under the status menu in factordb.com. These are numbers that factordb.com wants full prime factorizations for. I find full prime factorization and submit my...
Forum: MattcAnderson 2021-09-07, 02:34
Replies: 1
Views: 107
Posted By MattcAnderson
prime constellations web page

The attached file was hosted online by Google. Google provided this service to me for free.
Unfortunately, I am no longer able to edit the online file, and I don't know how long it will
be before...
Forum: And now for something completely different 2021-09-07, 02:22
Replies: 26
Views: 1,841
Posted By MattcAnderson
Hi Norman I have no idea how long Google...

Hi Norman

I have no idea how long Google will make my Prime Constellations web page visible.

I backed it up for archive purposes, but don't have an immediate plan for sharing it online.

Feel...
Forum: MattcAnderson 2021-09-06, 18:18
Replies: 41
Views: 2,188
Posted By MattcAnderson
Hi again, Today's favorite mega number is...

Hi again,

Today's favorite mega number is 6,248,426.

And my computer tool lets me see its prime integer factorization.

2*71*79*557.

Fun
Forum: And now for something completely different 2021-09-06, 12:45
Replies: 26
Views: 1,841
Posted By MattcAnderson
Smile Hi All, Thank you for your efforts, Norman. ...

Hi All,

Thank you for your efforts, Norman. I appreciate your work for k-tuples web page. I made a similar web page (that I can no longer edit, and it was free to me)

see...
Forum: FactorDB 2021-09-06, 00:31
Replies: 15
Views: 1,784
Posted By MattcAnderson
Thanks for the informative replies. Also, I...

Thanks for the informative replies.

Also, I continue to factor composite numbers for factordb.com This is fun for me and useful for anyone who may want these results.

Matt
Forum: MattcAnderson 2021-09-05, 00:46
Replies: 41
Views: 2,188
Posted By MattcAnderson
Hi interested people and others, Look at...

Hi interested people and others,

Look at 8,653,841.

We see that 47*71*2593 = 8,653,841.

This is a lot of fun.

Regards,
Matt
Forum: MattcAnderson 2021-09-03, 13:51
Replies: 8
Views: 512
Posted By MattcAnderson
Smile Hi All, I asked about this polynomial...

Hi All,

I asked about this polynomial x^2+x+41 on mathoverflow.net

see

https://mathoverflow.net/questions/395359/what-are-prime-number-values-of-the-trinomial-qn-n2-n-41-assuming-n
...
Forum: MattcAnderson 2021-09-03, 13:47
Replies: 8
Views: 512
Posted By MattcAnderson
Hi All, Here is some numerical evidence that...

Hi All,

Here is some numerical evidence that there are infinitely many x such that x^2+x+41 is a prime number.
See the attached graph.

Regards,
Matt
Forum: MattcAnderson 2021-09-02, 13:12
Replies: 41
Views: 2,188
Posted By MattcAnderson
Smile Hello again, Today's favorite Mega number is...

Hello again,

Today's favorite Mega number is 7,122,222.

And by inspection, we can see that the prime factorization is 2*3*3*3*131893.

Enjoy

Matt
Forum: MattcAnderson 2021-09-01, 06:37
Replies: 41
Views: 2,188
Posted By MattcAnderson
Smile Hello again, Today's favorite mega number is...

Hello again,

Today's favorite mega number is 1,753,913.

and that is 7*71*3529.

Enjoy

Matt
Forum: MattcAnderson 2021-08-30, 03:17
Replies: 0
Views: 90
Posted By MattcAnderson
Smile Google webpage

Hi all,

Look at my Google sites webpage.

https://sites.google.com/view/mca-1-2-3colegiate/home

Matt
Forum: Puzzles 2021-08-30, 01:39
Replies: 58
Views: 1,597
Posted By MattcAnderson
Smile Hi again all, Hopefully this classifies this...

Hi again all,

Hopefully this classifies this exercise. I want to make it clear to everybody.
Showing results 1 to 25 of 870

 
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