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A173649 Primes found in decimal expansion of 1/Pi. 0
3, 31, 31830988618379067153776752674502872406891 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Primes found in A049541.

The next prime a(4) = 31830988618….32476310351 has 1153 digits.

LINKS

Table of n, a(n) for n=1..3.

EXAMPLE

1/Pi = 0.3183098861837906715377675... so a(1)=3 ; a(2)=31.

MAPLE

Digits := 100; n0 := evalf(1/Pi); for i from 1 to 500 do x := trunc(10^i*n0): if isprime(x) then printf(`%d, `, x): fi: od:

CROSSREFS

Cf. A000796, A049541.

Sequence in context: A005042 A317482 A136582 * A210648 A119937 A254312

Adjacent sequences:  A173646 A173647 A173648 * A173650 A173651 A173652

KEYWORD

nonn,base,bref

AUTHOR

Michel Lagneau, Nov 24 2010

STATUS

approved

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Last modified September 20 22:20 EDT 2018. Contains 315247 sequences. (Running on oeis4.)