**QUEUED AS f29_172p1**
(29^172+1)/1977948238996322263945153711436692767366002 from the Brent tables:

Code:

# Parms passed Mon Jan 18 22:16:01 2021
# SNFS difficulty is 252, GNFS equivalent is 183, GNFS difficulty is 210, degree 5
n: 172282321913464114150160339658281460042524379498739464352164479024588571464669822548361643777240338727940019145934396930389108221808291170688942941049034048025812420301319701775678781985322991990231716957357121
type: snfs
c5: 841
c0: 1
# Y0 = 29^34
Y0: 52666193272726422601456708224751866691705278695881
# Y1 = 1^0
Y1: -1
# msieve rating: skew 0.26, size 2.300e-17, alpha 0.772, combined = 8.468e-14 rroots = 1
skew: 0.26
rlim: 134000000
alim: 134000000
lpbr: 31
lpba: 31
mfbr: 62
mfba: 62
rlambda: 2.6
alambda: 2.6

I test sieved degree 6, but that's definitely lower yielding.

Sieve on 15e_small from 34M to 164M on the rational side.

Test sieving 10k ranges:

Code:

Q yield
34M 16090
84M 17151
134M 16810
184M 15580

I'll do the LA.

Chris