Exponents with identical digits
Look for all prime exponents that have long strings of identical digits (all digits but one identical).
Eliminate those that have been factored or verified composite. What's left?
DoubleCheck=11111119,64,1
Test=55555553,64,0
DoubleCheck=59999999,71,1
Test=71111111,64,0
Edit: formerly was:
Test=55555553,58,0
Test=71111111,60,0
Edited as per following post.
Last fiddled with by GP2 on 2003-10-10 at 21:32
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