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Old 2020-12-31, 12:51   #1761
ET_
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"Luigi"
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Quote:
Originally Posted by James Heinrich View Post
All within 1 bit of each other?? That's... unusual.
...fascinating... (C)
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Old 2021-01-08, 03:26   #1762
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M27152453 has a 77.503-bit (24-digit) factor: 214211625581311913643047 (P-1,B1=1350000,B2=89100000)


Long live large B2!

k= 7 × 83 × 173 × 577 × 68 015 191
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Old 2021-01-13, 05:02   #1763
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Indeed!!!

Quote:
Originally Posted by firejuggler View Post
Long live large B2!
M102202943 has a 110.005-bit (34-digit) factor: 1302388182362272479207770608381153 (P-1,B1=1500000,B2=45000000,E=12)

min B2 = 24 878 501

M102057829 has a 100.217-bit (31-digit) factor: 1473595630881614096459261244097 (P-1,B1=1500000,B2=91500000)

min B2 = 63 240 223
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Old 2021-01-15, 05:32   #1764
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Quote:
Originally Posted by nomead View Post
https://www.mersenne.ca/exponent/4217750177

It already had one factor, now it has four more.
67.472 - 66.121 = 1.351

By that measure, then, these four are bunched up even closer:
https://www.mersenne.ca/exponent/4241699879

67.221 - 65.933 = 1.288
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Old 2021-01-16, 03:43   #1765
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P-1 found a factor in stage #2, B1=736000, B2=19894000.
UID: Jwb52z/Clay, M102192683 has a factor: 1528515278715554871122431 (P-1, B1=736000, B2=19894000)

80.338 bits.
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