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P-1 probability calculator
P+1 Factors
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P-1 vs PRP at wavefront
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Probable primes (PRP)
Trial-factoring assignment >1000M (tf1G)
Operation Billion Digits (OBD)
Worktodo balancer
Split large assignment blocks to workers
Sort Strings by Length
Worktodo skip known-factor assignments
P-1 to TF worktodo rewriter
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TF worktodo filter for previous ECM/TF effort
Factoring Beyond First Factor
LL-DC priority assignments
mfactor/factor5 results to JSON converter
mfaktc results to JSON converter
P-1 effort distribution
TF distribution for factored exponents
Exponents that were poorly P-1 factored
Factor discovery date lookup
Results to BBcode factor results converter
Graphs of Known Factors
0M
<
10
10
All tracked exponents
0M
<
2
32
GPU TF range
0M
<
1000M
PrimeNet range
0M
<
193M
low-PrimeNet, low-res
0M
<
385M
low-PrimeNet, high-res
50M
<
146M
PrimeNet wavefront
Trial-Factoring bit-depth lookup
Prime Factorization for small numbers
Calculate decimal digits in Mersenne number
Convert GIMPS Factoring Effort to PFactor
External Links:
Mersenne Forum
Prime Wiki
GPU to 72
by
Chris Halsall
GIMPS Status
Factorization using ECM
Mersenne software download mirror
Calculate bit size of factor:
Factoring Beyond First Factor
This form will help you find TF / P-1 work for small exponents that already have at least one known factor.
minimum exponent
maximum exponent
minimum TF bits
(optional)
maximum TF bits
(optional)
TF assignment factor-to bits
(optional, if blank will be current+1)
P-1 Tests Saved (PFactor)
minimum number of known factors
maximum number of known factors
Fixed B1 you will use for P-1 (optional). If specified, assignments will be generated with this B1 value instead of normal-optimal B1.
In either case if specified/calculated B1 is lower than already-performed P-1 B1, assignment will be generated with (
currentB1
*
1.3
).
No P-1
any
Stage-1 only
Stage-2 only
Has P-1
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only show exponents with no P+1 done
show links to all exponent pages (at the bottom of search results)
TF
PM1
Assigment worktodo type (PM1 worktodo is slower to generate and limited to fewer results. Also includes P+1 worktodo lines.)
no factors
1+ factor(s)
either
filter by whether exponent is factored or not
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