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#23312 - Fri May 12 2000 12:20 AM Pi & primes
Thiv Offline
Prolific

Registered: Fri Nov 19 1999
Posts: 1377
Loc: Canada
1- We all know that 14159 are the first five decimal digits of PI, but how many times does this sequence appear in the first 10 million digits of PI?

2- Also in the first 10 million digits of pi,
how many times does X appear, where X is the first 5-digit prime that use five different numbers?

3- And at what position of PI will you find the first 4-digit prime?

4- And at what position of PI will you find the first 5-digit prime?

And an easy one to sweeten things up!

5- What two 2-digit primes when converted to binary "resemble" a decimal prime?

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#23313 - Sun May 14 2000 07:38 PM Re: Pi & primes
TexasJoe Offline
Multiloquent

Registered: Tue Oct 05 1999
Posts: 3171
Loc: Plano, Texas
Wild Guess!

Length / Position
1 / 4 (5)
2 / 2 (41)
3 / 7 (653)
4 / 2 (4159)
5 / 1 (14159)
6 / 9 (358979
7 / 3 (1592653)
8 / 33 (28841971)

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