Title
Sieve methods for odd perfect numbers.
Abstract
Using a new factor chain argument, we show that 5 does not divide an odd perfect number indivisible by a sixth power. Applying sieve techniques, we also find an upper bound on the smallest prime divisor. Putting this together we prove that an odd perfect number must be divisible by the sixth power of a prime or its smallest prime factor lies in the range 10(8) < p < 10(1000) These results are generalized to much broader situations.
Year
DOI
Venue
2012
10.1090/S0025-5718-2011-02576-7
MATHEMATICS OF COMPUTATION
Keywords
Field
DocType
Abundance,factor chains,large sieve,odd perfect number
Prime (order theory),Unitary perfect number,Combinatorics,Perfect number,Perfect power,Prime factor,Divisor,Prime power,Mathematics,Large sieve
Journal
Volume
Issue
ISSN
81
279
0025-5718
Citations 
PageRank 
References 
0
0.34
11
Authors
3
Name
Order
Citations
PageRank
S. Adam Fletcher100.34
PACE P. NIELSEN272.96
Pascal Ochem325836.91