Currently there may be errors shown on top of a page, because of a missing Wiki update (PHP version and extension DPL3).

Navigation

Topics

Help • Register • News • History • How to • Sequences statistics • Template prototypes

Fermat number 2^2¹²+1

From Prime-Wiki

Revision as of 11:49, 8 July 2021 by Karbon (talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Jump to: navigation, search

Current data

`a` `b` `n` :	2 1 12
FactorDB :	ID: 1000000000012154120 / Formula: 2^2¹²+1
Digits :	1234
State :	CF

Remarks :

2010 proven composite by different anonymous provers

Factors

Proth 7•2¹⁴+1 (GF Divisor), found 1877 by Ivan Mikheevich Pervushin, Édouard Lucas
Proth 397•2¹⁶+1 (GF Divisor), found 1903 by Alfred Edward Western
Proth 973•2¹⁶+1 (GF Divisor), found 1903 by Alfred Edward Western
Proth 11613415•2¹⁴+1 (GF Divisor), found 1974 by John C. Hallyburton, John Brillhart
Proth 76668221077•2¹⁴+1 (GF Divisor), found 1986-07-25 by Robert Baillie
Proth 173532302104295945791330996991...99(50)•2¹⁵+1 (GF Divisor), found 2010-03-27 by Michael Vang, (GMP-ECM)
Composite C_<1133>

Factorization

114689 * 26017793 * 63766529 * 190274191361_<12> * 1256132134125569_<16> * 568630647535356955169033410940867804839360742060818433_<54> * C_<1133>

Retrieved from "https://www.rieselprime.de/z/index.php?title=Generalized_Fermat_number_2_1_12&oldid=14982"

Generalized Fermat number 2 1 Nums