Add number-length word and clean cartesian-product
Add number-length word and clean cartesian-product

nicolas-p/factor,slavapestov/factor,erg/factor,Keyholder/factor,mrjbq7/factor,littledan/Factor,slavapestov/factor,dch/factor,nicolas-p/factor,mcandre/factor,sarvex/factor-lang,sarvex/factor-lang,mcandre/factor,dch/factor,ehird/factor,tgunr/factor,Keyholder/factor,cataska/factor,factor/factor,sarvex/factor-lang,ehird/factor,erg/factor,nicolas-p/factor,slavapestov/factor,kingcons/factor,ceninan/factor,sarvex/factor-lang,dch/factor,tgunr/factor,seckar/factor,erg/factor,AlexIljin/factor,mrjbq7/factor,kingcons/factor,littledan/Factor,bpollack/factor,bjourne/factor,factor/factor,ceninan/factor,Keyholder/factor,tgunr/factor,nicolas-p/factor,cataska/factor,AlexIljin/factor,dch/factor,bjourne/factor,erg/factor,kingcons/factor,kingcons/factor,nicolas-p/factor,tgunr/factor,bjourne/factor,cataska/factor,AlexIljin/factor,mcandre/factor,ceninan/factor,factor/factor,bpollack/factor,sarvex/factor-lang,bpollack/factor,cataska/factor,bjourne/factor,erg/factor,bjourne/factor,bjourne/factor,ehird/factor,slavapestov/factor,AlexIljin/factor,AlexIljin/factor,nicolas-p/factor,factor/factor,factor/factor,littledan/Factor,slavapestov/factor,bpollack/factor,sarvex/factor-lang,erg/factor,seckar/factor,bpollack/factor,bpollack/factor,mcandre/factor,dch/factor,mrjbq7/factor,tgunr/factor,factor/factor,mrjbq7/factor,nicolas-p/factor,sarvex/factor-lang,bpollack/factor,mcandre/factor,slavapestov/factor,dch/factor,tgunr/factor,seckar/factor,mrjbq7/factor,ceninan/factor,mrjbq7/factor,littledan/Factor,slavapestov/factor,bjourne/factor,erg/factor,mcandre/factor,AlexIljin/factor,AlexIljin/factor,mcandre/factor