The composite cofactor of F1797 was the product of 112-digit and 136-digit prime numbers:

112-digit prime factor:
3192329391409164006912549148830590047519130402850516171015944461728821599419886721580518727400219251225616668661

136-digit prime factor:
1015308706042202343686998743968191231426298850413495814834569055026437635577238532429620730994897365698914504568133096904508675584480037

The factors have been reported to the Fibonacci project.