Fixes the test_factorials.py test by using explicit imports.
Fixes the test_factorials.py test by using explicit imports.

yukoba/sympy,bukzor/sympy,fperez/sympy,toolforger/sympy,ga7g08/sympy,AkademieOlympia/sympy,jaimahajan1997/sympy,souravsingh/sympy,wyom/sympy,shikil/sympy,beni55/sympy,vipulroxx/sympy,bukzor/sympy,sunny94/temp,madan96/sympy,liangjiaxing/sympy,ChristinaZografou/sympy,kumarkrishna/sympy,cswiercz/sympy,Davidjohnwilson/sympy,lindsayad/sympy,madan96/sympy,farhaanbukhsh/sympy,grevutiu-gabriel/sympy,kmacinnis/sympy,tovrstra/sympy,hazelnusse/sympy-old,chaffra/sympy,yukoba/sympy,aktech/sympy,wanglongqi/sympy,sahmed95/sympy,maniteja123/sympy,Curious72/sympy,lidavidm/sympy,shikil/sympy,souravsingh/sympy,asm666/sympy,KevinGoodsell/sympy,Gadal/sympy,MridulS/sympy,Titan-C/sympy,skidzo/sympy,yukoba/sympy,Vishluck/sympy,AkademieOlympia/sympy,mafiya69/sympy,aktech/sympy,abloomston/sympy,grevutiu-gabriel/sympy,shipci/sympy,dqnykamp/sympy,Shaswat27/sympy,hrashk/sympy,jbbskinny/sympy,sampadsaha5/sympy,hargup/sympy,VaibhavAgarwalVA/sympy,rahuldan/sympy,kevalds51/sympy,mcdaniel67/sympy,sahmed95/sympy,cccfran/sympy,minrk/sympy,cswiercz/sympy,souravsingh/sympy,saurabhjn76/sympy,amitjamadagni/sympy,VaibhavAgarwalVA/sympy,shikil/sympy,ahhda/sympy,atreyv/sympy,hargup/sympy,cccfran/sympy,postvakje/sympy,ga7g08/sympy,sahilshekhawat/sympy,garvitr/sympy,debugger22/sympy,jerli/sympy,MechCoder/sympy,moble/sympy,minrk/sympy,lindsayad/sympy,emon10005/sympy,meghana1995/sympy,kevalds51/sympy,ahhda/sympy,pandeyadarsh/sympy,sampadsaha5/sympy,Davidjohnwilson/sympy,kumarkrishna/sympy,sunny94/temp,oliverlee/sympy,hazelnusse/sympy-old,beni55/sympy,ga7g08/sympy,hrashk/sympy,MechCoder/sympy,wyom/sympy,liangjiaxing/sympy,shipci/sympy,cccfran/sympy,grevutiu-gabriel/sympy,sahilshekhawat/sympy,pandeyadarsh/sympy,beni55/sympy,maniteja123/sympy,kaichogami/sympy,toolforger/sympy,skidzo/sympy,MechCoder/sympy,Designist/sympy,sahmed95/sympy,lidavidm/sympy,AunShiLord/sympy,asm666/sympy,Mitchkoens/sympy,skirpichev/omg,vipulroxx/sympy,atreyv/sympy,pbrady/sympy,maniteja123/sympy,kaichogami/sympy,Mitchkoens/sympy,abhiii5459/sympy,lidavidm/sympy,garvitr/sympy,lindsayad/sympy,MridulS/sympy,abhiii5459/sympy,srjoglekar246/sympy,sampadsaha5/sympy,Titan-C/sympy,liangjiaxing/sympy,ChristinaZografou/sympy,jbbskinny/sympy,asm666/sympy,Gadal/sympy,AunShiLord/sympy,Designist/sympy,yashsharan/sympy,yashsharan/sympy,jbaayen/sympy,farhaanbukhsh/sympy,vipulroxx/sympy,saurabhjn76/sympy,kumarkrishna/sympy,wanglongqi/sympy,mattpap/sympy-polys,Arafatk/sympy,shipci/sympy,kevalds51/sympy,Curious72/sympy,iamutkarshtiwari/sympy,Vishluck/sympy,chaffra/sympy,Designist/sympy,ryanGT/sympy,Curious72/sympy,kaichogami/sympy,abloomston/sympy,toolforger/sympy,mcdaniel67/sympy,Davidjohnwilson/sympy,bukzor/sympy,VaibhavAgarwalVA/sympy,abloomston/sympy,atsao72/sympy,Mitchkoens/sympy,jbbskinny/sympy,moble/sympy,sunny94/temp,kaushik94/sympy,pernici/sympy,hargup/sympy,pbrady/sympy,meghana1995/sympy,Vishluck/sympy,flacjacket/sympy,kmacinnis/sympy,madan96/sympy,drufat/sympy,iamutkarshtiwari/sympy,debugger22/sympy,emon10005/sympy,Sumith1896/sympy,farhaanbukhsh/sympy,jaimahajan1997/sympy,dqnykamp/sympy,kaushik94/sympy,dqnykamp/sympy,mafiya69/sympy,skidzo/sympy,Arafatk/sympy,Titan-C/sympy,jamesblunt/sympy,drufat/sympy,MridulS/sympy,ChristinaZografou/sympy,jamesblunt/sympy,sahilshekhawat/sympy,jaimahajan1997/sympy,postvakje/sympy,postvakje/sympy,aktech/sympy,jerli/sympy,rahuldan/sympy,diofant/diofant,iamutkarshtiwari/sympy,Sumith1896/sympy,Shaswat27/sympy,atsao72/sympy,kmacinnis/sympy,mcdaniel67/sympy,drufat/sympy,wanglongqi/sympy,Sumith1896/sympy,mafiya69/sympy,jerli/sympy,atreyv/sympy,Gadal/sympy,oliverlee/sympy,hrashk/sympy,wyom/sympy,Shaswat27/sympy,kaushik94/sympy,garvitr/sympy,pandeyadarsh/sympy,rahuldan/sympy,abhiii5459/sympy,moble/sympy,chaffra/sympy,yashsharan/sympy,oliverlee/sympy,jamesblunt/sympy,meghana1995/sympy,amitjamadagni/sympy,ahhda/sympy,debugger22/sympy,emon10005/sympy,atsao72/sympy,Arafatk/sympy,AunShiLord/sympy,saurabhjn76/sympy,cswiercz/sympy,pbrady/sympy,AkademieOlympia/sympy