Talk:Strange plus numbers

From Rosetta Code
Revision as of 08:13, 23 February 2021 by Chunes (talk | contribs) (→‎Help with Description: strange plus numbers)

Help with Description

Is there an external, more decriptive link for "strange plus numbers"? Can someone help with the description? Thanks. --Paddy3118 (talk) 07:37, 23 February 2021 (UTC)

It seems that strange numbers and strange plus numbers have been coined by CalmoSoft. The web seems to know nothing of them. 498 is a 'strange plus number' because 4+9 is prime and 9+8 is prime. Every sum of adjacent pairs of digits must be prime. --Chunes (talk) 08:13, 23 February 2021 (UTC)
Retrieved from "https://rosettacode.org/wiki/Talk:Strange_plus_numbers?oldid=308480"