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On 2000-05-18 at 00:00GMT Marvin Ray Burns conjectured that there are only a finite number of primes of the form 10^n+1 (Cf.

This thread (Cf. tries to show that the integer sequence of such primes is

{2, 11, 101}

and there are no more.

10^(2^n) + 1

Only generalized Fermat numbers of the form

may possibly be prime.

See also