Solved cryptogram
Primes get rarer as numbers grow, and the rate at which they thin out follows a simple law.
Mathematics Facts, sourced to Wolfram MathWorld.
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What it means
Near a number of a given size, the chance that it is prime is roughly one over its natural logarithm. That means about one in five numbers near a hundred is prime, and about one in a thousand near a number with four hundred digits. The result was guessed by Gauss as a teenager from tables of primes and not proved for another century.
The claim comes from Wolfram MathWorld.
- SourceWolfram MathWorld
- CollectionMathematics Facts
- Difficultymedium
- Length72 letters, 20 unique
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