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-   -   different double checking protocol in the past? (https://www.mersenneforum.org/showthread.php?t=10806)

ixfd64 2008-10-19 02:27

different double checking protocol in the past?
 
I know that an exponent must be tested at least twice in order to be considered "verified."

However, the PrimeNet page also says this:

[QUOTE][U]Double-check assignments[/U] are identical to Lucas-Lehmer assignments, however a (D) also appears to the right of the exponent. These comparatively rare tests recompute earlier residues of questionable reliability.[/QUOTE]

Were double checks "unnecessary" in GIMPS' early days or something?


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