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Fermat number 2^2¹⁸+1

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Current data

`a` `b` `n` :	2 1 18
FactorDB :	ID: 1000000000002000018 / Formula: 2^2¹⁸+1
Digits :	78914
State :	CF

Remarks :

1999 proven composite by Richard E. Crandall

Factors

Proth 13•2²⁰+1 (GF Divisor), found 1903 by Alfred Edward Western
Proth 9688698137266697•2²³+1 (GF Divisor), found 1999-04-16 by Richard E. Crandall, Richard J. McIntosh, Claude Tardif
Composite C_<78884>

Factorization

13631489 * 81274690703860512587777_<23> * C_<78884>

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Generalized Fermat number 2 1 Nums