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Old 2008-10-31, 11:23   #2
S485122
 
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"Jacob"
Sep 2006
Brussels, Belgium

5·349 Posts
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The values I have (from the sources of v24 and v25) are :
Code:
Bits	up to Exponent
56	  1 000 000
57	  1 480 000
58	  1 930 000
59	  2 360 000
60	  2 950 000
61	  3 960 000
62	  5 160 000
63	  6 515 000
64	  8 250 000
65	 13 380 000
66	 23 390 000
67	 29 690 000
68	 37 800 000
69	 47 450 000
70	 58 520 000
71	 75 670 000
72	 96 830 000
73	115 300 000
74	147 500 000
75	186 400 000
76	227 300 000
77	264 600 000
78	337 400 000
79	420 400 000
80	516 000 000
In the source code :
Code:
#define FAC80	516000000L
#define FAC79	420400000L
#define FAC78	337400000L
#define FAC77	264600000L
#define FAC76	227300000L
#define FAC75	186400000L
#define FAC74	147500000L
#define FAC73	115300000L
#define FAC72	96830000L
#define FAC71	75670000L
#define FAC70	58520000L
#define FAC69	47450000L
#define FAC68	37800000L
#define FAC67	29690000L
#define FAC66	23390000L

/* These breakevens we're calculated a long time ago on unknown hardware: */

#define FAC65	13380000L
#define FAC64	8250000L
#define FAC63	6515000L
#define FAC62	5160000L
#define FAC61	3960000L
#define FAC60	2950000L
#define FAC59	2360000L
#define FAC58	1930000L
#define FAC57	1480000L
#define FAC56	1000000L
This would mean that exponents above 516M should be factored to 81 bits at least.

Jacob
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