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Search for : 2^k-k^2


Rank
Probable prime
Digits (> 10000)
Who?
When?
7132^1405715-1405715^2423163Henri Lifchitz03/2025
11282^1101167-1101167^2331485Henri Lifchitz07/2024
14402^954127-954127^2287221Henri Lifchitz01/2021
16992^851725-851725^2256395Henri Lifchitz03/2019
30682^608541-608541^2183190Henri Lifchitz02/2018
38162^525667-525667^2158242Henri Lifchitz12/2017
127542^307407-307407^292539Henri Lifchitz05/2005
131562^301683-301683^290816Henri Lifchitz05/2005
203462^205933-205933^261993Henri Lifchitz05/2005
231662^192023-192023^257805Henri Lifchitz05/2005
631362^141915-141915^242721Henri Lifchitz04/2005
674992^119087-119087^235849Henri Lifchitz03/2002
1597512^80307-80307^224175Henri Lifchitz12/2001
2044782^64773-64773^219499Henri Lifchitz12/2001
2137822^55525-55525^216715Henri Lifchitz12/2001
2307832^49989-49989^215049Henri Lifchitz11/2001

Total : 16 PRP(s)



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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: August, 23 2025 10:09 (Time in France)