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Old 2003-06-07, 23:06   #1
wblipp
 
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"William"
May 2003
New Haven

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Default What traits make a number a good choice for NFSNET?

What traits make a number a good choice for NFSNET? Is the size of the base number (227 digits for 10^227-1) important? Is ths size of the composite cofactor (212 digits for 10^227-1) important? How big is "too big to be interesting?" How much previous work should have been done by other methods?
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