# RSA180 (re-factored)

### Polynomial

The polynomial was generated by CADO-NFS, using Thorsten Kleinjung 's 2006 algorithm (Math. Comp. 75, 2006).

n: 1911479277189866096892294666314546498129862462766673548

6418850363880726070343679905877620136513516127813425829612

8109200046702912984568752800330221777752773957404540495707

851421041

c5: 4257855000

c4: 25266891603611190

c3: -7675133134023837719144

c2: 9873326227079805791829718892

c1: 1088433248769931581437066744663679

c0: -231224259775478995528888691580952166982

Y1: 49028777468186483077

Y0: -8519924423233492656781280655651035

# lognorm: 55.79, alpha: -4.89 E=50.90

# Murphy's E(Bf=10000000,Bg=5000000,area=1.00e+16)=5.51e-14

### Sieving

Lattice sieve was done in lasieve. 579779432 raw relations were generated.
rlim: 40000000

alim: 80000000

lpbr: 33

lpba: 33

mfbr: 66

mfba: 99

rlambda: 2.2

alambda: 3.2

### Filtering and linear algebra

Filtering and linear algebra was done in msieve using on a cluster of 4 cores on 16 nodes.
Matrix had size 16M x 16M and the calendar time was approximated 7 days.

### Comments

1. The number was first factored by S. A. Danilov and I. A. Popovyan from the Moscow State University, Russia.