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A248933

Decimal expansion of 2^2281 - 1, the 17th Mersenne prime A000668(17).

4, 4, 6, 0, 8, 7, 5, 5, 7, 1, 8, 3, 7, 5, 8, 4, 2, 9, 5, 7, 1, 1, 5, 1, 7, 0, 6, 4, 0, 2, 1, 0, 1, 8, 0, 9, 8, 8, 6, 2, 0, 8, 6, 3, 2, 4, 1, 2, 8, 5, 9, 9, 0, 1, 1, 1, 1, 9, 9, 1, 2, 1, 9, 9, 6, 3, 4, 0, 4, 6, 8, 5, 7, 9, 2, 8, 2, 0, 4, 7, 3, 3, 6, 9, 1, 1, 2, 5, 4, 5, 2, 6, 9, 0, 0, 3, 9, 8, 9, 0, 2, 6, 1, 5, 3

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OFFSET

687,1

COMMENTS

The 13th through the 17th Mersenne primes were found in 1952 by Raphael M. Robinson, using SWAC.

The digits of this prime were published on page 167 of Nordisk Mathematisk Tidskrift 2 (1954).

LINKS

Arkadiusz Wesolowski, Table of n, a(n) for n = 687..1373

D. H. Lehmer, Two New Mersenne Primes, Mathematics of Computation, vol. 7, No. 41 (1952), p. 72.

Wikipedia, Mersenne prime

FORMULA

Equals 2^A000043(17) - 1.