The composite cofactor of 3,745+ was the product of 62-digit and 140-digit prime numbers:

62-digit prime factor:
14570551592255101108584986199681311802194722170534464121654211

140-digit prime factor:
71347768526038790995439629892829307786551633893375053090511439473001356220364659280144799516662151127663759970291463038816459212710930544601

The factors have been reported to the Cunningham project and have been recorded on Page 126.