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Greg
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Message 1072 - Posted: 19 Jan 2013, 19:20:27 UTC
Last modified: 5 Jan 2016, 19:42:46 UTC

The composite cofactor of 3617523089023,19- was the product of 84-digit and 143-digit prime numbers:

84-digit prime factor:
557258425413806445667309985154135217521361150595029596359152854319857835915823200759

143-digit prime factor:
20199795244583513021981780712113866444867173343763106622339890390300388073800190109878675467564995471684114306237330166755975882748293540763207

Thanks to Thomas Womack for performing the postprocessing. The factors have been reported to the OddPerfect project.
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factorman

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Message 1602 - Posted: 26 Oct 2015, 20:59:56 UTC
Last modified: 26 Oct 2015, 21:00:20 UTC

143-digit prime factor. Not 156-digit.
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