The composite cofactor of 2,1019- was the product of 76-digit and 171-digit prime numbers:

76-digit prime factor:
1140356877758679056056869944845540826402854641895928218298013381554156431441

171-digit prime factor:
388681245434555178040304037498388111255149718948082513123081412986356790468105286823145968792673325167362315988082015725832111525\
046899514339119511003116426129870872549431

The factors have been reported to the Cunningham project and have been recorded on Page 125.