Quote:
Originally Posted by R.D. Silverman
Would anyone like to place bets on whether this computation will
have the same problem as the first? Will switching machines solve
the problem?
N.B. I would hate to have to reformulate the matrix and do the reduction
yet another time.....
Meanwhile, filtering for 2,833+ is nearly done and sieving for 2,1406M is
in progress.

Switching machines did solve the problem. 2,815 finished yesterday.
It had prime factors of 57,67, and 72 digits.