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Meaning of Cunningham chain | Babel Free

Noun CEFR B2

Definitions

  1. A certain kind of sequence of prime numbers, with applications in cryptography.
  2. A Cunningham chain of the first kind of length n is a sequence of prime numbers (p₁, ..., pₙ) such that for all 1 ≤ i < n, pᵢ₊₁ = 2pᵢ + 1.
  3. A Cunningham chain of the second kind of length n is a sequence of prime numbers (p₁,...,pₙ) such that for all 1 ≤ i < n, pᵢ₊₁ = 2pᵢ − 1.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

Cunningham's Law Cunninghame Cunninghamhead cunninghamia Cunningly cunningman

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