Revision as of 13:36, 12 September 2019 (view source) Nigel Galloway (talk \| contribs) (→‎comments concerning interesting observations from an webpage) ← Older edit		Revision as of 10:43, 18 September 2019 (view source) Nigel Galloway (talk \| contribs) (→‎30 mins not 30 years) Newer edit →
Line 14: ::*   when the number of digits in a rare number is   ''odd'',   the   '''difference'''   must be divisible by   '''9'''. ===2030 mins not 2030 years=== If Shyam Sunder Gupta has really spent 2030 years on this he should have stayed in bed. Let me spend ~~20mins~~30mins on it. The following took 9mins so any questions and I have ~~11mins~~21mins to spare. <pre> Let me consider n-r=l for a 2 digit number ng n<g. Then l=(10g+n)-(g+10n)=9(g-n) where n is 0..8 and g is 1..9. Line 55: x dissappears leaving 99(111(e-n)+10(g-i)) </pre>--[[User:Nigel Galloway\|Nigel Galloway]] ([[User talk:Nigel Galloway\|talk]]) 13:34, 12 September 2019 (UTC) :I have turned the computer on and produced a solution using only the above and nothing from the referenced website which completes in under a minute. The reference is rubbish, consider removing it--[[User:Nigel Galloway\|Nigel Galloway]] ([[User talk:Nigel Galloway\|talk]]) 10:42, 18 September 2019 (UTC) == the 1<sup>st</sup> REXX version ==

Talk:Rare numbers: Difference between revisions

Talk:Rare numbers (view source)