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Re: No Putnam spoilers please
Posted:
Dec 3, 2012 9:09 AM
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William Elliot <marsh@panix.com> wrote in news:Pine.NEB.4.64.1212021939320.2621@panix2.panix.com:
> On Sat, 1 Dec 2012, William Elliot wrote: >> On Sat, 2 Dec 2012, Bart Goddard wrote: >> > William Elliot <marsh@panix.com> wrote in >> > >> > > How do we know if a question is a Putnam question? >> > >> > It'll have the number 2012 in it somewhere. >> >> "What's 5^2012 mod 7?" is a Putnam question? ;-} >> > What the heck, just to add some math, I'll solve it, > Putnam question or not. > > phi(7) = 6; 5^2012 = 5^(6 * 335 + 2) = 5^2 = 25 = 4 (mod 7) >
See? We need a new contest called "Putnam Jeopardy".
I'll take "Small Squares for 300".
The answer is..."4"
<bronk!> "What is 2+2?"
Sorry no.
<bronk!> "What is the base of the binary system?"
Sorry no.
<bronk!> "What is the number of units in the ring of integers?"
Sorry no. The question we were looking for was "What is 5^2012 mod 7?" John, you still control the board.
I'll take "Stupid integral tricks for 600...."
-- Cheerfully resisting change since 1959.
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