Unformatted text preview: so that ( 2 n n ) is not divisible by 3 or 5. (iii) ($1000) Show that there inﬁnitely many values of n so that ( 2 n n ) is not divisible by 3 , 5 or 7. (iv) ($1000) Show that there are only ﬁnitely many values of n so that ( 2 n n ) is not divisible by 3 , 5 , 7 or 11. Note : I don’t really expect anyone to solve (ii), (iii) or (iv) but computing some data might give a clue as to what is going on. 1...
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 Fall '07
 Graham
 Fraction, Negative and nonnegative numbers, Prime number, Greatest common divisor, Postage stamp, cent postage stamps

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