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Message boards :
Generalized Cullen/Woodall prime search :
GCW Sieve Factors Found
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Just curious, for those of you running this project, what percentage of tasks result in a factor found for you?
Completed tasks : 522
Credit : 345,698.67
Factors found : 1 (avg. 0.0019/task) | |
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Michael Goetz Volunteer moderator Project administrator
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Joined: 21 Jan 10 Posts: 13619 ID: 53948 Credit: 265,553,506 RAC: 307,646
                           
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tasks: 3819
credit: 2,085,722
factors: 2170 (avg. 0.5682/task)
The number of factors found decreases as the depth of the sieve increases, so you will find many more factors at the beginning of a sieve than at the end. That's why we eventually suspend sieves: they no longer find enough factors to be make it worth the computer time.
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My lucky number is 75898524288+1 | |
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dthonon Volunteer tester
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Joined: 6 Dec 17 Posts: 401 ID: 957147 Credit: 1,547,075,409 RAC: 2,624,096
                             
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Completed tasks 230773
Credit 126,035,249.66
Factors found 953 (avg. 0.0041/task)
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Completed tasks 56761
Credit 32,642,474.83
Factors found 20629 (avg. 0.3634/task)
I jumped on this project when it first became available and which explains the large number of factors found. | |
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Monkeydee Volunteer tester
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Joined: 8 Dec 13 Posts: 452 ID: 284516 Credit: 585,866,549 RAC: 2,807,331
                        
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Completed tasks 56761
Credit 32,642,474.83
Factors found 20629 (avg. 0.3634/task)
I jumped on this project when it first became available and which explains the large number of factors found.
Same here. I just didn't do as many tasks as you...
Completed tasks 4278
Credit 2,336,376.17
Factors found 2289 (avg. 0.5351/task)
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My Primes
Badge Score: 2*1 + 4*2 + 6*3 + 7*10 + 10*4 = 138
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dthonon Volunteer tester
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Joined: 6 Dec 17 Posts: 401 ID: 957147 Credit: 1,547,075,409 RAC: 2,624,096
                             
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Completed tasks 230773
Credit 126,035,249.66
Factors found 953 (avg. 0.0041/task)
Started 3 months ago, so 0.004 is the current average. | |
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I started somewhat in the middle and only ran until I got the "cyan" badge.
Units: 7313
Factors: 1789 (.2246 avg per task)
Credit: 5,110,283 | |
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Dave  Send message
Joined: 13 Feb 12 Posts: 2874 ID: 130544 Credit: 1,073,941,046 RAC: 1,278,080
                      
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Started this at the start & it dribbles on with currently excellently optimal RACs in the land of the doorstop.
Generalized Cullen/Woodall (sieve) tasks
Completed tasks 10612
Credit 6,283,979.59
Factors found 989 (avg. 0.0932/task
Do I win? | |
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fnordSend message
Joined: 26 Apr 18 Posts: 2 ID: 1007806 Credit: 106,379,012 RAC: 946,551
             
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Completed tasks 200
Credit 109,212.91
Factors found 1 (avg. 0.005/task) | |
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Completed tasks: 856
Credit: 467,443.10
Factors found: 3 (avg. 0.0035/task) | |
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robish Volunteer moderator Volunteer tester
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Joined: 7 Jan 12 Posts: 1912 ID: 126266 Credit: 5,437,055,040 RAC: 5,606,114
                           
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Completed tasks 3651
Credit 1,993,704.55
Factors found 8 (avg. 0.0022/task)
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My lucky numbers 10590941048576+1 and 224584605939537911+81292139*23#*n for n=0..26 | |
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Completed tasks 671
Credit 368,092.26
Factors found 1 (avg. 0.0015/task) | |
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Completed task = 36.758
Credit = 20.073.560
Factors found = 12.240 ( avg. = 0.3329/task ) ! | |
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Generalized Cullen/Woodall (sieve) tasks
Completed tasks 5763
Credit 3,547,412.01
Factors found 745 (avg. 0.1293/task
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GDBSend message
Joined: 15 Nov 11 Posts: 252 ID: 119185 Credit: 2,733,015,748 RAC: 2,068,829
                     
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How do you find the CURRENT factor removal rates for GCW sieve? Snapshot the factors removed, wait x days, and snapshot again to compute the factor removal rate? | |
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Completed tasks 4334
Credit 2,368,408.43
Factors found 14 (avg. 0.0032/task) | |
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Dave  Send message
Joined: 13 Feb 12 Posts: 2874 ID: 130544 Credit: 1,073,941,046 RAC: 1,278,080
                      
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Completed tasks 12595
Credit 7,366,835.84
Factors found 1000 (avg. 0.0794/task) | |
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Completed tasks 1449
Credit 791,272.34
Factors found 1 (avg. 0.0007/task)
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Completed tasks 85336
Credit 48,246,422.11
Factors found 20698 (avg. 0.2425/task)
I jumped on this project from the first day it became available and which accounts for the large number of factors found. | |
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Dave  Send message
Joined: 13 Feb 12 Posts: 2874 ID: 130544 Credit: 1,073,941,046 RAC: 1,278,080
                      
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"Are we there yet?" | |
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Completed tasks 921
Credit 502,930.24
Factors found 3 (avg. 0.0033/task) | |
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robish Volunteer moderator Volunteer tester
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Joined: 7 Jan 12 Posts: 1912 ID: 126266 Credit: 5,437,055,040 RAC: 5,606,114
                           
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Completed tasks 10000
Credit 5,460,722.10
Factors found 24 (avg. 0.0024/task)
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My lucky numbers 10590941048576+1 and 224584605939537911+81292139*23#*n for n=0..26 | |
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Completed tasks 138973
Credit 77,536,254.52
Factors found 20815 (avg. 0.1498/task) | |
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GDBSend message
Joined: 15 Nov 11 Posts: 252 ID: 119185 Credit: 2,733,015,748 RAC: 2,068,829
                     
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Generalized Cullen/Woodall (sieve) tasks
Completed tasks 4488
Credit 2,526,356.49
Factors found 297 (avg. 0.0662/task) | |
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compositeVolunteer tester Send message
Joined: 16 Feb 10 Posts: 813 ID: 55391 Credit: 719,333,301 RAC: 318,764
                      
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Completed tasks 64537
Credit 35,242,171.89
Factors found 1292 (avg. 0.02/task)
Trying to reach emerald badge before work runs out.
I expect that I will get there in a few months. | |
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Message boards :
Generalized Cullen/Woodall prime search :
GCW Sieve Factors Found |