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The Primality of N=2A3n-1

Published online by Cambridge University Press:  20 November 2018

H. C. Williams*
Affiliation:
University of Manitoba, Winnipeg, Manitoba
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Lehmer [3] and Reisel [7] have devised tests for determining the primality of integers of the form A2n—1. Tables of primes of these forms may be found in [7] and Williams and Zarnke [10]. Little work, however, seems to have been done on integers of the form N=2A3n—1. Lucas [6] gave conditions that were only sufficient for the primality of N. Recently Lehmer [4] has given a method for determining the primality of an integer N if the factorization of N+1 is known.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1972

References

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