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Fermat number 2^2²¹+1

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Current data

`a` `b` `n` :	2 1 21
FactorDB :	ID: 1000000000002000021 / Formula: 2^2²¹+1
Digits :	631306
State :	CF

Remarks :

Proven composite in 1993 by Richard E. Crandall, J. Doenias, C. Norrie & Jeffrey Young

Factors

Proth 534689•2²³+1 (GF Divisor), found 1963 by Claude P. Wrathall
Composite C_<631294>

Factorization

4485296422913_<13> * C_<631294>

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Generalized Fermat number 2 1 Nums