List of recent champions for factoring Cunningham numbers:

Elliptic curve method:
5116	P59	10,233-	B. Dodson ECMNET
4830	P57	2,997-	B. Dodson ECMNET

Largest penultimate prime factor (ultimate factor shown also):
4835	p105*p107 10,223-   Dodson/AKL/Leyland/CWI
5101	p102*p106 12,597M   CWI

	First five holes in each table on March 10, 2005

2,739-	c168	2,761-	c189	2,781-	c158	2,787-	c204	2,793-	c186
2,719+	c166	2,737+	c184	2,749+	c189	2,751+	c221	2,779+	c212
2,1294L	c187	2,1322M	c175	2,1334L	c186	2,1342L	c170	2,1342M	c138
2,736+	c172	2,760+	c153	2,764+	c220	2,772+	c215	2,776+	c180

3,437-	c151	3,443-	c187	3,449-	c175	3,461-	c157	3,481-	c201
3,424+	c156	3,436+	c194	3,452+	c195	3,463+	c200	3,466+	c180

5,311-	c173	5,313-	c210	5,317-	c194	5,319-	c182	5,323-	c186
5,311+	c203	5,313+	c197	5,314+	c179	5,320+	c175	5,328+	c181

6,263-	c196	6,281-	c162	6,283-	c173	6,293-	c165	6,299-	c155
6,263+	c186	6,271+	c195	6,274+	c191	6,283+	c193	6,284+	c168

7,253-	c177	7,257-	c192	7,259-	c175	7,263-	c161	7,269-	c224
7,254+	c178	7,257+	c189	7,268+	c185	7,272+	c181	7,274+	c178

10,239-	c228	10,241-	c229	10,257-	c241	10,263-	c216	10,269-	c233
10,226+	c197	10,229+	c164	10,232+	c160	10,236+	c193	10,238+	c152

11,217-	c171	11,227-	c195	11,229-	c217	11,233-	c181	11,235-	c182
11,208+	c185	11,212+	c201	11,218+	c192	11,220+	c147	11,224+	c194

12,227-	c197	12,229-	c242	12,233-	c215	12,239-	c255	12,241-	c260
12,218+	c191	12,227+	c213	12,229+	c158	12,232+	c181	12,236+	c151