Hi,
Can anyone confirm these results?
C(100) mod 13^8 = snip
C(1000000) mod 13^8 = snip
C(123456789) mod 13^8 = snip
C(C(C(100))) mod 13^8 = snip
C(C(C(1000))) mod 13^8 = snip
C(C(C(9999))) mod 13^8 = snip
Thanks a lot
Edit by hk:
snipped values.
Let's keep it at the examples given in the problem statement.
Problem 312
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See also the topics:
Don't post any spoilers
Comments, questions and clarifications about PE problems.
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ThinkerR
- Posts: 1
- Joined: Sat Dec 04, 2010 5:01 pm
Re: Problem 312
Hi,
Is it :
C(C(C(10 000))) mod 138
or :
C(C(C(10 000) mod 138) mod 138) mod 138 ?
Because C(10 000) must be a huge number given C(5) = 71328803586048 !
Thanks
Is it :
C(C(C(10 000))) mod 138
or :
C(C(C(10 000) mod 138) mod 138) mod 138 ?
Because C(10 000) must be a huge number given C(5) = 71328803586048 !
Thanks
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stijn263
- Posts: 1505
- Joined: Sat Sep 15, 2007 11:57 pm
- Location: Netherlands
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idantlol
- Posts: 16
- Joined: Mon Jul 11, 2011 1:14 pm
Re: Problem 312
Gah, this problem is giving me a headache. I've had a formula for a long time, but my attempts at actually evaluating it have all been futile so far. What's really frustrating is that I'm getting correct answers for some parts, like C(10000) mod 10^8 but not C(10000) mod 13^8 and so I guess the mistake must be fairly subtle. Even finding C(10000) mod 130^8 and then modding that out by 13^8 works, but that hack doesn't seem to produce the right answer for C(C(C(10000)))...