Word.ws English Dictionary

Wall-Sun-Sun prime

Wall-Sun-Sun prime noun: a (hypothetical) prime number p such that p² divides F_π(p), where F_n is the Fibonacci sequence and π(p) is the pth Pisano period (the period length of the Fibonacci sequence reduced modulo p).

Noun

Wall-Sun-Sun prime (plural Wall-Sun-Sun primes)

  1. A (hypothetical) prime number p such that p² divides F_π(p), where F_n is the Fibonacci sequence and π(p) is the pth Pisano period (the period length of the Fibonacci sequence reduced modulo p).
    • Wall-Sun-Sun primes are conjectured to exist, but no example has yet been found.
    • Not a single Wall-Sun-Sun prime 5lt;plt;1.6#92;times 10#123;12#125; exists [McIntosh 1995]. Carry out a search for Wall-Sun-Sun primes somewhere above this limit.1996, Richard E. Crandall, Topics in Advanced Scientific Computation, Springer, page 113
    Synonyms:
    Fibonacci-Wieferich prime

Synonyms of Wall-Sun-Sun prime

  • Fibonacci-Wieferich prime

Forms of Wall-Sun-Sun prime

pluralWall-Sun-Sun primes
alternative formWall-Sun-Sun prime number

Origin of Wall-Sun-Sun prime

Named after American mathematician Donald Dines Wall and Chinese mathematicians Sun Zhihong and Sun Zhiwei, who have all contributed to the study of such primes.

Questions about Wall-Sun-Sun prime

What does Wall-Sun-Sun prime mean?
Wall-Sun-Sun prime means a (hypothetical) prime number p such that p² divides F_π(p), where F_n is the Fibonacci sequence and π(p) is the pth Pisano period (the period length of the Fibonacci sequence reduced modulo p).
What part of speech is Wall-Sun-Sun prime?
Wall-Sun-Sun prime is a noun.
What is the plural of Wall-Sun-Sun prime?
The plural of Wall-Sun-Sun prime is Wall-Sun-Sun primes.

Words near Wall-Sun-Sun prime in the dictionary

  1. wall-sided
  2. wall-slam
  3. wall-slammed
  4. wall-slamming
  5. wall-slams
  6. Wall-Sun-Sun prime
  7. Wall-Sun-Sun primes
  8. wall-table
  9. wall-tables
  10. wall-to-wall
  11. wall-wart

Source and license

Adapted from Wiktionary: Wall-Sun-Sun prime (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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