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Mathematics of Computation
Mathematics of Computation
ISSN 1088-6842(online) ISSN 0025-5718(print)


Repunit R49081 is a probable prime

Author: Harvey Dubner
Journal: Math. Comp. 71 (2002), 833-835
MSC (2000): Primary 11A41
Published electronically: March 30, 2001
MathSciNet review: 1885632
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Abstract | References | Similar Articles | Additional Information


The Repunit R $49081=(10^{49081}-1)/9$ is a probable prime. In order to prove primality R49080 must be approximately 33.3% factored. The status of this factorization is included.

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Additional Information

Harvey Dubner
Affiliation: 449 Beverly Road, Ridgewood, New Jersey 07450

PII: S 0025-5718(01)01319-9
Keywords: Prime numbers, primality proving
Received by editor(s): March 21, 2000
Received by editor(s) in revised form: May 30, 2000
Published electronically: March 30, 2001
Article copyright: © Copyright 2001 American Mathematical Society

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