I've seen a lot of certificates being processed for RichD and RobertS over the last month or so. A month or two ago I was doing some small ones as well as 2100-2300 digit ones from the list, but I've lately been working on some prime gaps up in the 6000 digit range instead, especially as anything under 2100 digits now gets handled within an hour or so, making my proofs usually wasted (albeit for really small amounts of CPU time).
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