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• Recent Factors
Alternate Web-page Style
Here is a mirror of this web-site, but in a parallel universe using black text on a pale background. More...
More photos have been added. See our friend Bill G and a "floating ship"
which appears to hang suspended above the horizon.
See screen-shots of various Insider Builds of Windows 10.
See some screen-shots of Windows 7.
The Sydney PC User Group is an independent club of users discussing all aspects of personal computers.
The members also help each other solve
computer problems. It has several Special Interest Groups or
SIGs including Genealogy, Digital Photography and Web Design.
More recently I've written some Perl scripts to construct web-pages based
on tables of integer factors that I have discovered.
Use the inbuilt DOS ftp command to upload files quickly from a batch file. If uploading different files each time, however, use a Windows FTP program like the free Core-FTP program instead.
Unicodes may be necessary in HTML when named
symbols are not available (for
Cyrillic characters Я and и for
A 116-digit personal record prime factor has been found on Wed Feb 15th, 2017. It divides the 233-digit number 5 • 2790 + 1 = p116 • p117.
A 112-digit personal record prime factor has been found on Fri April 1st, 2016. It divides the 226-digit number 7 • 2746 + 1 = p112 • p114.
Msieve, written by Jason Papadopoulos is described. It contains
fast code to solve large sets of linear equations. See the new
to automate Msieve post-processing after a GGNFS
• World Record Factorization (p146 • p156) NEW
Sample CSS shapes.
Updated: Sat Jan 13, 2018
© 2018 Bob Backstrom