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Generalized Fermat number 7^2²¹+4^2²¹

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Current data

`a` `b` `n` :	7 4 21
FactorDB :	ID: 1100000002531093698 / Formula: 7^2²¹+4^2²¹
Digits :	1772300
State :	UF

Factors

Proth 7•2²⁶+1 (GF Divisor), found 1996 by Anders Björn, Hans Riesel
Unknown U_<1772291>

Factorization

469762049 * U_<1772291>

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Generalized Fermat number 7 4 Nums