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Old 2018-09-21, 05:59   #237
LaurV
Romulan Interpreter
 
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Jun 2011
Thailand

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Default For the 'happy me' thread...

Some nice and (kind of) rare break of D3 on seq 181428, at index 1028 (close to 160 digits), without doubling of the 5 - but doubling the 3, and getting a lucky C154 cofactor which split in two primes, 41*P153, haha, both being 1 (mod 4), so we went from 2^3*3^2*5 to 2^4*3^2*5^2*11^2, then 11^3, then it lost the 5's and all the small primes except a 3. We are struggling now with the C156 (still in ecm phase).
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