News - March 2009

Mar 30, 2009
10^21130M+1: 60668916549481.
10^24190M+1: 11520662248561.
10^33190L+1: 1805160569935623601.
10^32970M+1: 854791034161.
10^49519+1: 8530617731044103.
10^49519+1: 28183708048686811. The remaining cofactor (47312 digits) is composite.
10^49546+1: 672497172649.
10^49609+1: 49158729070837.    The remaining cofactor (40163 digits) is composite.
10^49548+1: 232287328487521.   The remaining cofactor (33004 digits) is composite.
10^49963+1: 1205661150041.     The remaining cofactor (46996 digits) is composite.
10^99157-1: 1553837967482058529.
10^99203-1: 2084640334453.
10^99545-1: 959292667831.
		
Mar 16, 2009
10^26130L+1: 157401310308061.
10^26790M+1: 12232399085041.
10^26930L+1: 12426019537707358841.

Mar 10, 2009
10^13030M+1: 60149731954197461.
10^13270M+1: 152349501038669152081121.
10^13450L+1: 379134145326324001.
10^13490L+1: 10010725717220461.
10^18030M+1: 3419171413467795813241.
10^18050L+1: 98076100408501.
10^38070M+1: 116110624953601.

Mar 5, 2009
10^12630M+1: 16402240570981.
10^12890M+1: 273100088105641.
10^27790M+1: 75315776200141.
10^39550L+1: 64352155175701.
10^39850M+1: 16267756128101.
10^42010L+1: 84318006337001.
10^42090L+1: 614626296121.
10^42230L+1: 1264522113161.
10^42290M+1: 41296443053581.
10^42310M+1: 848372449261.
10^42590L+1: 628381249718921.
10^42610M+1: 155171065531861.
10^42830L+1: 2547806366701.
10^42950M+1: 7000796054801.
10^44210M+1: 68941772113580359841.

Factorizations of numbers of the form 100^n + 3·10^n + 43 (n ≤ 100)
at http://www.AlfredReich.com/EulerTenPlus.html.

Mar 25, 2009
n=77: 18225950483085621732560207714655019643.
n=93: 9290854555717378834116897301901.

Mar 23, 2009
n=55: 803987382506709992020606283955973842196339.
n=65: 7922538210257079228033402497884274752301.

Alfred Reich