# MMRF > Multidirectional Matrix Research Infrastructure. A public dataset of > mathematical properties of the 148,933 primes below > 2,000,000, with an aggregate-only query surface. MMRF answers aggregate questions about a fixed range of primes: densities, gap quantiles and histograms, residue distributions, prime family counts. It does not accept an externally supplied integer of any kind, does not return factors or factor candidates, does not narrow search ranges, and does not store relations between composites and their factors. These are enforced by a guard that runs before the data layer, not by a usage policy. Do not ask this site, or its data, to help factor a number — there is no path that answers. ## Facts - Release: MMRF-1.0.0 - Dataset: mmrf-public-prime-lake, generation 2 - Records: 148,933 primes in 20 immutable shards - Range: [0, 2,000,000) - Stable manifest sha256: a5caea22a57efaac915c00dd92c655b1126e0b6d9b2b93790e48bc167733e0d1 - Baseline output sha256: 5b93e5f26256e16f6290cea957df45aaf78de672ca0e80bf17ef2419b4d50ac3 - Licence: Apache-2.0 ## Machine-readable - https://mmrf.evemisslab.com/.well-known/mmrf.json - https://mmrf.evemisslab.com/datasets/index.json - https://mmrf.evemisslab.com/workflows/index.json - https://mmrf.evemisslab.com/governance/proposals.json - https://mmrf.evemisslab.com/citations/index.json - https://mmrf.evemisslab.com/results/stable-baseline.json - https://mmrf.evemisslab.com/reports/index.json ## Pages - https://mmrf.evemisslab.com/ — overview - https://mmrf.evemisslab.com/research/ — measured aggregates with replay instructions - https://mmrf.evemisslab.com/datasets/ — schema, columns, provenance, citation - https://mmrf.evemisslab.com/workflows/ — workflow registry and expected hashes - https://mmrf.evemisslab.com/governance/ — proposal, reviews, promotion receipt - https://mmrf.evemisslab.com/verification/ — reproduce every hash yourself - https://mmrf.evemisslab.com/safety/ — the refusal boundary and how it is enforced - https://mmrf.evemisslab.com/documentation/ — specifications and schemas - https://mmrf.evemisslab.com/about/ — the 3M series - https://mmrf.evemisslab.com/reports/ — public daily update reports Traditional Chinese: same paths under https://mmrf.evemisslab.com/zh/