Talk:Rare numbers: Difference between revisions

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114th (2,620,955,641,393,276,283,162)

115th (2,620,955,623,931,476,283,162)

116th (2,959,503,377,707,360,349,192)

(Provisionally numbered, not in final numeric order) This is probably ~~only~~ ~~~30~~% of the search space. There may be many more to go. Lots of 2,2 combinations there so far. Nearly half of all rare numbers under 21 digits start and end with 2. I guess we will see if that trend continues as more solutions show up... --[[User:Enter your username|Enter your username]] ([[User talk:Enter your username|talk]]) 06:17, 2 December 2019 (UTC)

117th (2,747,736,918,335,953,517,072)

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(Provisionally numbered, not in final numeric order) This is probably about 50% of the search space. There may be many more to go. Lots of 2,2 combinations there so far. Nearly half of all rare numbers under 21 digits start and end with 2. I guess we will see if that trend continues as more solutions show up... --[[User:Enter your username|Enter your username]] ([[User talk:Enter your username|talk]]) 06:17, 2 December 2019 (UTC)

:Now that you've established that there are five 21 digit rare numbers, it might be worth mailing SSG (at guptass@rediffmail.com) to see if he'll add them to his list.