THE 22ND FERMAT NUMBER IS COMPOSITE

被引：0
|
作者：
CRANDALL, R
DOENIAS, J
NORRIE, C
YOUNG, J
机构：
来源：
MATHEMATICS OF COMPUTATION | 1995年 / 64卷 / 210期
关键词：
D O I：
10.2307/2153456
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
We have shown by machine proof that F-22 = 2(222) + 1 is composite. In addition, we reenacted Young and Buell's 1988 resolution of F-20 as Composite, finding agreement with their final Selfridge-Hurwitz residues. We also resolved the character of all extant cofactors of F-n, n less than or equal to 22, finding no new primes, and ruling out prime powers.
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页码：863 / 868
页数：6
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