Remote Access Mathematics of Computation
Green Open Access

Mathematics of Computation

ISSN 1088-6842(online) ISSN 0025-5718(print)

 

 

The twentieth Fermat number is composite


Authors: Jeff Young and Duncan A. Buell
Journal: Math. Comp. 50 (1988), 261-263
MSC: Primary 11A51; Secondary 11Y05, 11Y11
MathSciNet review: 917833
Full-text PDF Free Access

Abstract | References | Similar Articles | Additional Information

Abstract: The twentieth Fermat number, $ {F_{20}} = {2^{{2^{20}}}} + 1$, has been proven composite by machine computation.


References [Enhancements On Off] (What's this?)


Similar Articles

Retrieve articles in Mathematics of Computation with MSC: 11A51, 11Y05, 11Y11

Retrieve articles in all journals with MSC: 11A51, 11Y05, 11Y11


Additional Information

DOI: http://dx.doi.org/10.1090/S0025-5718-1988-0917833-8
Article copyright: © Copyright 1988 American Mathematical Society