for those who love to think
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04-03-2017, 03:48 AM
Post: #1
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for those who love to think
What is the first multidigit palindromic prime to appear in the decimal expansion of Pi?
This number is also the sum of the first three 3-digit palindromic primes. |
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04-03-2017, 03:59 AM
Post: #2
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RE: for those who love to think
It's within the digits of PI that I know
- Pauli |
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04-03-2017, 05:13 AM
Post: #3
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RE: for those who love to think
3.141592653589793238462643383...
<0|ΙΈ|0> -Joe- |
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04-03-2017, 08:09 AM
Post: #4
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RE: for those who love to think | |||
04-03-2017, 08:20 AM
Post: #5
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RE: for those who love to think | |||
04-03-2017, 11:52 AM
Post: #6
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04-03-2017, 10:23 PM
Post: #7
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RE: for those who love to think
but I'd only just memorised enough....
Pauli |
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04-03-2017, 10:46 PM
Post: #8
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RE: for those who love to think
I've only memorized the first 20, as that's usually way more than enough to overflow the precision of any calculating device I'm using that doesn't have Pi as a built-in constant.
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04-04-2017, 08:28 PM
Post: #9
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RE: for those who love to think
I've memorized them all... in base \(\pi\) :-)
10 |
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04-05-2017, 12:15 PM
Post: #10
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RE: for those who love to think
(04-03-2017 11:52 AM)Don Shepherd Wrote:(04-03-2017 08:20 AM)Paul Dale Wrote: I've memorised enough digits of PI to find the 383 without having to look more up. There was a story going around that some state legislator proposed a bill to define PI as the integer 3. He said it would make it easier for school children to learn. If the story true, I fear for our students! Tom L Tom L Cui bono? |
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04-05-2017, 12:45 PM
Post: #11
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RE: for those who love to think
(04-05-2017 12:15 PM)toml_12953 Wrote: There was a story going around that some state legislator proposed a bill to define PI as the integer 3. He said it would make it easier for school children to learn. If the story true, I fear for our students! Do search for "Indiana PI Bill". This was in 1897 and did not pass. Not one of Indiana's finest moments in legislative history, but, in retrospect, not much less crazy than some of the bills that are still being proposed today. Bill Smithville, NJ |
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