23-digit factor of (M+2)1398269 by Prime95

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Jul 2, 2007, 10:40:14 AM7/2/07

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This just in from J.Berg:

"Sigma=1180945885294350, B1=50000, B2=5000000.
2^1398269+1 has a factor: 23609117451215727502931

Prime95, approximately 150 curves done before it showed up

J.
"

Thanks, and Congratulations!!!

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