login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A277064
Decimal expansion of (sqrt(3)-1)^(sqrt(2)-1).
1
8, 7, 8, 8, 0, 2, 2, 0, 4, 8, 5, 5, 4, 4, 0, 6, 4, 8, 2, 5, 4, 2, 4, 5, 0, 2, 4, 5, 6, 5, 0, 6, 6, 5, 2, 2, 4, 1, 5, 8, 9, 5, 1, 5, 9, 1, 8, 6, 3, 1, 8, 0, 6, 4, 9, 3, 1, 3, 7, 3, 4, 1, 5, 2, 8, 8, 8, 0, 5, 3, 8, 3, 0, 0, 7, 8, 7, 2, 3, 8, 7, 6, 3, 4, 7, 7, 0, 4, 0, 7, 3, 7, 6, 0, 7, 3, 0, 9, 6, 8, 2, 1, 4, 4, 7
OFFSET
0,1
COMMENTS
It is easy to see that there are no primes with more than one digit in the first 37 decimal places of (sqrt(3)-1)^(sqrt(2)-1). All primes with more than one digit end in 1, 3, 7, or 9. The only 1, 3, 7, or 9 in the first 37 decimal places of (sqrt(3)-1)^(sqrt(2)-1) is the 7 that is two digits after the decimal point. Since 87 = 3*29, there are no primes with more than one digit in the first 37 decimal places of (sqrt(3)-1)^(sqrt(2)-1). There are multidigit primes ending at the 38th decimal place, such as 41, 241, and 652241.
LINKS
Bobby Jacobs, Prime Curios
EXAMPLE
0.8788022048554406482542450245650665224...
MAPLE
evalf((sqrt(3)-1)^(sqrt(2)-1), 110); # Muniru A Asiru, Oct 11 2018
MATHEMATICA
First@ RealDigits[N[(Sqrt[3] - 1)^(Sqrt[2] - 1), 120]] (* Michael De Vlieger, Sep 27 2016 *)
PROG
(PARI) (sqrt(3)-1)^(sqrt(2)-1) \\ Rick L. Shepherd, Nov 23 2016
(Magma) SetDefaultRealField(RealField(100)); (Sqrt(3)-1)^(Sqrt(2)-1); // G. C. Greubel, Oct 10 2018
CROSSREFS
Sequence in context: A203914 A037077 A094106 * A276762 A363874 A256609
KEYWORD
nonn,cons
AUTHOR
Bobby Jacobs, Sep 27 2016
EXTENSIONS
Extended and offset corrected by Rick L. Shepherd, Nov 23 2016
STATUS
approved