Mathematics Facts

Proofs and numbers that stay true no matter what the rest of this catalog turns out to say.

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50 cryptograms, each one a fact written for this site rather than a sentence taken from a book. Cited to 5 sources, Wolfram MathWorld the most common.

Sources

SourceFacts

How hard they are

4 easy, 29 medium and 17 hard, graded by the model described in our guide to solving cryptograms.

They average 72.8 letters over 19.5 distinct ones, with 4.4 letters appearing exactly once.

TierCryptogramsPlay

Every one of them

Each has a page of its own naming its source, and its answer on a separate page so you will not run into it by accident.

Source

Other fact collections

CollectionCryptograms

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