22338618,1

As of January 7, 2016, 2^74207281 - 1 is the largest known prime number and the 49th known Mersenne prime.

Table of n, a(n) for n=22338618..22338704.

C. Caldwell, GIMPS Project Discovers Largest Known Prime Number: 2^74,207,281-1

C. Caldwell, 2^74207281 - 1

(PARI) /* adapted from Hasler's PARI program in A193864 */

list(Nmax) = {default(realprecision, Nmax+5); digits(10^frac(74207281*log(2)/log(10))\.1^Nmax)}

list(50) \\ print initial 50 digits

Cf. A000043, A000668, A089065, A089578, A117853, A193864.

Sequence in context: A285339 A005082 A050452 * A200517 A151665 A171793

Adjacent sequences: A267872 A267873 A267874 * A267876 A267877 A267878

nonn,cons,fini

Felix FrÃ¶hlich, Jan 21 2016

approved