M3321929563 results
 

[QUOTE=lfm;142489]Trial-factoring M3321929563 in [2^72, 2^73-1]
M3321929563 has 0 factors in [2^72, 2^73-1].


I will continue on with this exponent to 76 bits.[/QUOTE]

OK, results.txt is now ...

Trial-factoring M3321929563 in [2^72, 2^73-1]
M3321929563 has 0 factors in [2^72, 2^73-1].
Trial-factoring M3321929563 in [2^73, 2^76-1]
M3321929563 has 0 factors in [2^73, 2^76-1].

and I am returning this machine to gimps, at least for now. good luck guys...

If, in the very distant future, GIMPS ever got to LL testing exponents in this range, what would be the TF limit?

[QUOTE=jinydu;144023]If, in the very distant future, GIMPS ever got to LL testing exponents in this range, what would be the TF limit?[/QUOTE]Based on the current breakeven points in Prime95, extrapolated forward, probably somewhere around 2^90. But, I suspect that new breakeven points would probably be calculated based on performance of current hardware at that time (like you can see the shift in the graph between the PII-era breakeven points and the Core2 era ones) and TF limits would likely be closer to 2^95 or even 2^100. My own speculation, of course.

My old Pentium Pro chugs along.

M3321929197 no factor from 2^72 to 2^73.

3321932443 no factor from 2^71 to 2^72. I completed the range of Curtis.

Luigi

3321929927 and 3321929929 both complete to 75. No factors.

M3321929789 has 0 factors in [2^71, 2^75-1].

(after 2 years... I decided to run Rde reservation to clear it up)

Luigi

M3321931819 has 0 factors in [2^71, 2^72-1].

I will take this exponent up to 75 bits

M3321931819 has 0 factors in [2^72, 2^73-1].

continuing up to 75 bits.

M3321931819 has 0 factors in [2^73, 2^74-1].

continuing to 75 bits

M3321928381 has 0 factors in [2^73, 2^78-1]