mersenneforum.org Complex Devaraj numbers
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 2019-08-26, 04:13 #1 devarajkandadai     May 2004 22·79 Posts Complex Devaraj numbers Recall that if N = p_1*p_2....p_r and if ((P_1-1)*(N-1)^(r-2)/((p_2-1)… (p_r-1)) is an integer then N is a Devaraj number. Q: are there complex Devaraj numbers? Yes here is an example: N = (2 - I)*((3 + 2*I)*(4-I)= 33 - 4*I is a Devaraj number since ((1-I)*(32 -4*I)/(2+3*I)*(3-I)) = 1 -5*I, a Gaussian integer.
 2019-08-26, 04:52 #2 VBCurtis     "Curtis" Feb 2005 Riverside, CA 120518 Posts Naming things after yourself is a well-paved path to warn others from paying any attention to you.
 2019-08-27, 14:52 #3 Uncwilly 6809 > 6502     """"""""""""""""""" Aug 2003 101×103 Posts 2·3·1,709 Posts Naming things after yourself also is a first sign that the thread should go to Misc. Math.

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