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( is 31 prime ? ) ( is 331 prime ? ) ( is 3331 prime ? ) ...
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henh...@gmail.com
8 ago 2022, 15:48:1808/08/22
a
( is 31 prime ? )
( is 331 prime ? )
( is 3331 prime ? )
( is 33 331 prime ? )
( is 333 331 prime ? )
( is 3 333 331 prime ? )
( is 33 333 331 prime ? )
Can _all_ 3333......3331 be Prime Numbers ?
Why does this work (so well) with 3's ?
------- pls (pls, Please... PLEASE ! ) wait a few days before posting answers or hints.
( is 331 prime ? )
( is 3331 prime ? )
( is 33 331 prime ? )
( is 333 331 prime ? )
( is 3 333 331 prime ? )
( is 33 333 331 prime ? )
Can _all_ 3333......3331 be Prime Numbers ?
Why does this work (so well) with 3's ?
------- pls (pls, Please... PLEASE ! ) wait a few days before posting answers or hints.
Richard Tobin
8 ago 2022, 18:45:0308/08/22
a
In article <962be1c7-0fff-42d2...@googlegroups.com>,
this sequence is mentioned in Martin Gardener's "The Last Recreations".
-- Richard
henh...@gmail.com <henh...@gmail.com> wrote:
>( is 31 prime ? )
>( is 331 prime ? )
>( is 3331 prime ? )
>( is 33 331 prime ? )
>( is 333 331 prime ? )
>( is 3 333 331 prime ? )
>( is 33 333 331 prime ? )
>
>Can _all_ 3333......3331 be Prime Numbers ?
As is noted at https://oeis.org/A051200 (which gives away the answer),
>( is 31 prime ? )
>( is 331 prime ? )
>( is 3331 prime ? )
>( is 33 331 prime ? )
>( is 333 331 prime ? )
>( is 3 333 331 prime ? )
>( is 33 333 331 prime ? )
>
>Can _all_ 3333......3331 be Prime Numbers ?
this sequence is mentioned in Martin Gardener's "The Last Recreations".
-- Richard
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