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Old 2020-10-02, 15:52   #18
chris2be8
 
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Sep 2009

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(48^148+1)/5308417 from the Brent tables:
Code:
# Built Thu Oct  1 19:31:23 2020
# Estimated SNFS difficulty 251, GNFS equivalent 181, GNFS difficulty 243, degree 6
n: 125527274767648583936106132931691528458418208390548154211539089513353496858137470216086056001597727876666307372130927675071684940430054631605322720469657625821424522709661414166983336792589554140001317810135745307732822035781539444451265413121
type: snfs
c6: 1
c0: 36
# Y0 = 48^25/2
Y0: 537032957163480394014074900915955940982784
# Y1 = 1^0*2/2
Y1: 1
# msieve rating: skew 1.82, size 2.357e-12, alpha 0.954, combined = 2.209e-13 rroots = 0
skew: 1.817
rlim: 120000000
alim: 120000000
lpbr: 31
lpba: 31
mfbr: 62
mfba: 62
rlambda: 2.6
alambda: 2.6
Sieve with 15e from 40M to 140M on the algebraic side.

Test sieving 10k ranges:
Code:
  Q  yield
 40M 27861
 80M 20739
120M 22683
160M 19413
200M 18186
And apologies for posting the result of f38_158p1 in the 15e thread instead of the 15e_small thread.

Chris
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