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PrimeGrid Fermat Divisor Search

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Fermat Divisor Search was a PrimeGrid project searching for large Fermat divisors. It began in September 2019, and ended in April 2021.[1]

Purpose

The project searched for Fermat divisors of the form k•2n+1, for the following ranges:[1]

  • 5 ≤ k ≤ 49 for n ≤ 9,000,000, with two exceptions:
    • k = 9 and 27 did not search even n-values, because they cannot produce Fermat divisors.[2]
  • k = 1323, 2187, 3267 for even[3] n ≤ 3,322,000
  • k = 3125, 3375 for n ≤ 3,322,000
  • k = 19683 for n ≤ 4,000,000

Completed status page

Found primes

See also

External links

References

PrimeGrid