Quote:
Originally posted by markr
Most current trialfactoring assignments will be done to 67 bits. I would guess a 2.4GHz P4 would complete one in 1.5 days. Of course not actually having one myself someone else will probably give a more accurate estimate.

Given that TF is a function of clock speed, I have estimated, based on my Celeron 2.0GHz (which takes ~32 hours to complete a TF), that a 2.4GHz P4 should take ~25 hours to complete a 2^67 TF with no factor.