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Message boards : Number crunching : Using Fourier Transforms To Multiply Numbers

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Profile Doc NoProject donor
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Joined: 2 Jan 09
Posts: 134
ID: 33689
Credit: 729,837,582
RAC: 7,297
Discovered 3 mega primes321 LLR Ruby: Earned 2,000,000 credits (4,921,665)Cullen LLR Ruby: Earned 2,000,000 credits (2,917,119)ESP LLR Ruby: Earned 2,000,000 credits (2,517,704)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (4,717,201)PPS LLR Sapphire: Earned 20,000,000 credits (33,065,396)PSP LLR Jade: Earned 10,000,000 credits (11,000,584)SoB LLR Sapphire: Earned 20,000,000 credits (23,509,455)SR5 LLR Jade: Earned 10,000,000 credits (11,722,231)SGS LLR Ruby: Earned 2,000,000 credits (4,378,393)TRP LLR Ruby: Earned 2,000,000 credits (3,539,919)Woodall LLR Ruby: Earned 2,000,000 credits (4,254,369)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,634,338)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (360,397)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,801,060)PPS Sieve Emerald: Earned 50,000,000 credits (77,103,903)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (4,364,469)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,845,234)AP 26/27 Turquoise: Earned 5,000,000 credits (7,241,013)WW Bronze: Earned 10,000 credits (64,000)GFN Double Gold: Earned 500,000,000 credits (512,633,204)PSA Silver: Earned 100,000 credits (246,526)
Message 124713 - Posted: 11 Jan 2019 | 22:03:58 UTC

Dunno if it's of any use for PrimeGrid, but I still found this fascinating and figured others would too:

http://blog.robertelder.org/fast-multiplication-using-fourier-transform/

dlawson
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Joined: 7 Jun 17
Posts: 29
ID: 895562
Credit: 89,479,009
RAC: 56,690
Discovered 1 mega primeFound 1 prime in the 2020 Tour de Primes321 LLR Amethyst: Earned 1,000,000 credits (1,133,947)Cullen LLR Amethyst: Earned 1,000,000 credits (1,513,568)ESP LLR Ruby: Earned 2,000,000 credits (2,023,366)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,130,361)PPS LLR Turquoise: Earned 5,000,000 credits (8,065,048)PSP LLR Amethyst: Earned 1,000,000 credits (1,248,722)SoB LLR Turquoise: Earned 5,000,000 credits (5,978,244)SR5 LLR Ruby: Earned 2,000,000 credits (3,244,521)SGS LLR Amethyst: Earned 1,000,000 credits (1,309,643)TRP LLR Amethyst: Earned 1,000,000 credits (1,885,274)Woodall LLR Ruby: Earned 2,000,000 credits (2,020,264)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,000,211)Generalized Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (512,764)PPS Sieve Jade: Earned 10,000,000 credits (11,002,944)AP 26/27 Turquoise: Earned 5,000,000 credits (6,327,295)WW Turquoise: Earned 5,000,000 credits (5,004,000)GFN Sapphire: Earned 20,000,000 credits (30,108,272)PSA Turquoise: Earned 5,000,000 credits (5,970,564)
Message 124716 - Posted: 11 Jan 2019 | 23:29:04 UTC - in response to Message 124713.

Thanks, got me a bit closer to understanding.

Message boards : Number crunching : Using Fourier Transforms To Multiply Numbers

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