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Old 2016-04-17, 17:51   #13
VBCurtis
 
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"Curtis"
Feb 2005
Riverside, CA

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Mr Klasson's site tracks only k up to 15, and all our remaining composites are 140 digits or larger. I've done a tiny bit of work on k = 17, but just a few CPU-days; I haven't reported those anywhere 'cause I didn't get very far.
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