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Fermat number 2^2¹²+1

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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>

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Generalized Fermat number 2 1 Nums