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If n is a positive integer, are n and 1 the only positive

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If n is a positive integer, are n and 1 the only positive [#permalink] New post 22 May 2004, 07:56
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If n is a positive integer, are n and 1 the only positive divisor of n?

(1) n is less than 14
(2) If n is doubled, the result is less than 27
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 [#permalink] New post 22 May 2004, 08:14
can not be solved by both combined hence (e)

1 and 2 imply the same thing
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 [#permalink] New post 23 May 2004, 07:56
a) n = { 0,1, ...13 } 13 is prime, 11 is prime 8 is not prime etc
b) n = { 0,1, ...13 } same thing( insufficient)
Combine both still u have a set of primes and non primes

Hence E.
  [#permalink] 23 May 2004, 07:56
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