test_factorials: make tests more general to accept all correct results.
test_factorials: make tests more general to accept all correct results.

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