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 Summing or Multiplying (Posted on 2006-08-21)
123 is a peculiar integer, because 1+2+3=1*2*3. 1412 is also peculiar, since 1+4+1+2=1*4*1*2.

A simple question: are there infinitely many such numbers?

A not so simple question: if so, are there such numbers for ANY number of digits?

 See The Solution Submitted by e.g. Rating: 4.2500 (8 votes)

 Subject Author Date re(3): Peculiars vs. Primes Old Original Oskar! 2006-08-23 07:24:50 re(4): Peculiars vs. Primes Old Original Oskar! 2006-08-23 07:23:09 re(3): Peculiars vs. Primes Robby Goetschalckx 2006-08-23 05:14:50 re(2): Peculiars vs. Primes Dej Mar 2006-08-22 19:00:39 re: Peculiars vs. Primes Federico Kereki 2006-08-22 17:33:41 Peculiars vs. Primes Eric 2006-08-22 16:32:36 re: An extra question -- spoiler Charlie 2006-08-22 14:24:01 re(2): An extra question - solution (spoiler) Charlie 2006-08-22 14:19:57 re: An extra question - solution (spoiler) Dej Mar 2006-08-22 12:43:18 An extra question e.g. 2006-08-22 11:28:09 re(2): my not so simple solution -- OOPS! Daniel 2006-08-22 06:05:03 re(2): With a program Charlie 2006-08-21 22:32:07 re: my not so simple solution -- OOPS! Old Original Oskar! 2006-08-21 21:54:01 re(2): With a program Dej Mar 2006-08-21 20:38:13 my not so simple solution Daniel 2006-08-21 19:33:03 re: With a program Federico Kereki 2006-08-21 19:08:01 With a program Joe 2006-08-21 16:45:01 Comments Federico Kereki 2006-08-21 12:36:44 Cursory examination Jer 2006-08-21 10:03:34 simple solution to simple part Charlie 2006-08-21 09:52:08

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