The composite cofactor of 6,349- was the product of 68-digit and 141-digit prime numbers:

68-digit prime factor:
42718986495841359540531087907270796421704343217605115730109486979483

141-digit prime factor:
27169665071123571324850025697263359088333452597617689238727636498183299237518\
2426818192208801216461941493240842717505382975945252028996771663

The factors have been reported to the Cunningham project and are recorded on Page 121.