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Forum: And now for something completely different

2017-02-15, 04:06

Replies: 110

MultiFactorial Prime Search

Views: 26,369

Posted By Batalov

Wow! This is very unusual. __ __ __ __ __ __ ...

Wow! This is very unusual.
__ __ __ __ __ __

Re: first question.
Clearly, x!m \pm 1 has strong implications on the survivor values of x (mod m) after sieving with small primes.
Take m=2, for...

Forum: And now for something completely different

2017-02-15, 00:42

Replies: 110

MultiFactorial Prime Search

Views: 26,369

Posted By Batalov

Because 7 | 559741, it can also be written as ...

Because 7 | 559741, it can also be written as
559741!7+1 = 79963! * 779963 + 1.

What values (mod 7) are left in the sieve, out of curiosity?
And why is it not submitted to UTM?

Forum: And now for something completely different

2016-10-17, 16:44

Replies: 110

MultiFactorial Prime Search

Views: 26,369

Posted By Batalov

Here is a "makefile" for building the binary: ...

Here is a "makefile" for building the binary:
all:
g++ -O3 -o mfsieve */*.cpp mf/*.S -lpthread

Forum: And now for something completely different

2016-10-14, 18:27

Replies: 110

MultiFactorial Prime Search

Views: 26,369

Posted By Batalov

What are you guys calling "bases" here? Isn't it...

What are you guys calling "bases" here? Isn't it a misnomer? It is all over this thread.

I take it that you are referring to what Davis calls "types", i.e. how many numbers are skipped in a...

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