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- Look up exponent / factor

- Calculate CPU Credit for any assignment
- CPU Throughput calculator
- Prime95 benchmarks
- Estimated GPU trial-factoring performance
- Estimated GPU Lucas-Lehmer performance
- P-1 probability calculator

- Exponents that were poorly P-1 factored
- Factors missed by P-1
- Exponents with less TF than expected
- Exponents with the most known factors
- P-1 factors found via Brent-Suyama
- Smoothest P-1 factors
- Probable prime (PRP) testing

- Worktodo balancer
- Split large assignment blocks to workers
- Worktodo skip known-factor assignments
- P-1 to TF worktodo rewriter
- TF worktodo bit level splitter

- Trial-Factoring bit-depth lookup
- Prime Factorization for small numbers
- Calculate number of digits in an exponent
- Convert GIMPS Factoring Effort to PFactor

- Mersenne Forum
- Mersenne Wiki
- GPU to 72 by
*Chris Halsall* - GIMPS Status
- Factorization using ECM
- Mersenne software download mirror