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Fermat number 2^2¹⁶+1

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Current data

`a` `b` `n` :	2 1 16
FactorDB :	ID: 1000000000002000016 / Formula: 2^2¹⁶+1
Digits :	19729
State :	CF

Remarks :

1996 proven composite by Richard P. Brent

Factors

Proth 1575•2¹⁹+1 (GF Divisor), found 1953-08-14 by John L. Selfridge
[[Proth prime 2 Long number:N1100000000087331571-NS(Long number:N1100000000087331571-DI)|Proth Long number:N1100000000087331571-NS(Long number:N1100000000087331571-DI)•2²⁰+1]] ([[GF Divisor Long number:N1100000000087331571-NS(Long number:N1100000000087331571-DI) 20|GF Divisor]])Long number:N1100000000087331571-NS(Long number:N1100000000087331571-DI)
Composite C_<19694>

Factorization

825753601 * Long number:N1100000000087331571-NS(Long number:N1100000000087331571-DI) * C_<19694>

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Generalized Fermat number 2 1 Nums