Aliquot Sequence 3630 Ends After Reaching 100 Digits

Manuel Benito Wolfgang Creyaufmueller Juan Luis Varona Paul Zimmermann 1
1 SPACES - Solving problems through algebraic computation and efficient software
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : In this paper we present a new computational record: the aliquot sequence starting at $3630$ converges to~$1$ after reaching a hundred decimal digits. Also, we show the current status of all the aliquot sequences starting with a number under $10000$. In particular, we have reached at least $112$ digits for the so-called ``Lehmer five sequences'', and 101 digits for the ``Godwin twelve sequences''. Finally, we give a summary showing the number of aliquot sequences of unknown end starting with a number~$\le 10^6$.
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Submitted on : Tuesday, September 26, 2006 - 2:53:29 PM
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Manuel Benito, Wolfgang Creyaufmueller, Juan Luis Varona, Paul Zimmermann. Aliquot Sequence 3630 Ends After Reaching 100 Digits. Experimental Mathematics, Taylor & Francis, 2002, 11 (2), pp.201-206. ⟨inria-00101005⟩



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