Sierpinski conjecture base 399 remain

Started: Dec. 18, 2025
Last update: Jan. 25, 2026

Compiled by Gary Barnes
Riesel conjectures
Riesel conjectures powers of 2
Riesel conjecture reservations
Sierpinski conjectures
Sierpinski conjectures powers of 2
Sierpinski conjecture reservations

Testing is coordinated at Mersenneforum Conjectures 'R Us.

81757255 k's remaining at n=1K. k's remaining in a file:

remain-sierp-base399-1K.zip