The composite cofactor of 5,427+ was the product of 54-digit and 145-digit prime numbers:

54-digit prime factor:
563755283862496929168659991708057447948580426252052767

145-digit prime factor:
2723528882195134624435365406241362651957822673755720745626178581944304857470575651366951292535191262\
712823827955524329324491207238166486348539107

The factors will be reported to the Cunningham project and will be recorded on Page 117.