Joined: 26 Jun 08
The composite cofactor of 5,433+ has been factored. It is the product of 133-digit and 139-digit prime numbers:
133-digit prime factor:
139-digit prime factor:
This is a new third place record for SNFS difficulty and first place champion for largest penultimate factor. The factors have been reported to the Cunningham project and will be recorded on Page 124.