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Fermat number 2^2¹³+1

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Current data

`a` `b` `n` :	2 1 13
FactorDB :	ID: 1000000000012158216 / Formula: 2^2¹³+1
Digits :	2467
State :	CF

Remarks :

1995 proven composite by Richard P. Brent

Factors

Proth 41365885•2¹⁶+1 (GF Divisor), found 1974 by John C. Hallyburton, John Brillhart
Proth 20323554055421•2¹⁷+1 (GF Divisor), found 1991-01-05 by Richard E. Crandall
Proth 6872386635861•2¹⁹+1 (GF Divisor), found 1991-05-09 by Richard E. Crandall
Proth 609485665932753836099•2¹⁹+1 (GF Divisor), found 1995-06-16 by Richard P. Brent
Composite C_<2391>

Factorization

2710954639361_<13> * 2663848877152141313_<19> * 3603109844542291969_<19> * 319546020820551643220672513_<27> * C_<2391>

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Generalized Fermat number 2 1 Nums