The composite cofactor of 2,1678M was the product of 64-digit and 133-digit prime numbers:

64-digit prime factor:
2685791372913670824739317192740014812958095908716289096994200293

133-digit prime factor:
95035709507685080816035575019513722698315148825086478259120256995846262559840379006523275720804186\
00995268956677611122583215095917649

The factors will be reported to the Cunningham project and will be recorded on Page 114. The next number will finish shortly. Onward ho!