prime number program puzzle question

prime\_UpgradeReport_Files
.....\....................\UpgradeReport.css
.....\....................\UpgradeReport.xslt
.....\....................\UpgradeReport_Minus.gif
.....\....................\UpgradeReport_Plus.gif
.....\Debug
.....\.....\prime.exe
.....\.....\prime.ilk
.....\.....\prime.pdb
.....\ipch
.....\....\prime-5883a99c
.....\....\..............\prime-c9d843e9.ipch
.....\prime.ncb
.....\prime.sdf
.....\prime.sln
.....\prime.sln.old
.....\prime.suo
.....\prime.suo.old
.....\prime
.....\.....\Debug
.....\.....\.....\BuildLog.htm
.....\.....\.....\CL.read.1.tlog
.....\.....\.....\CL.write.1.tlog
.....\.....\.....\link.5644.read.1.tlog
.....\.....\.....\link.5644.write.1.tlog
.....\.....\.....\link.5644-cvtres.read.1.tlog
.....\.....\.....\link.5644-cvtres.write.1.tlog
.....\.....\.....\link.read.1.tlog
.....\.....\.....\link.write.1.tlog
.....\.....\.....\link-cvtres.read.1.tlog
.....\.....\.....\link-cvtres.write.1.tlog
.....\.....\.....\mt.dep
.....\.....\.....\mt.read.1.tlog
.....\.....\.....\mt.write.1.tlog
.....\.....\.....\prime.Build.CppClean.log
.....\.....\.....\prime.exe.embed.manifest
.....\.....\.....\prime.exe.embed.manifest.res
.....\.....\.....\prime.exe.intermediate.manifest
.....\.....\.....\prime.lastbuildstate
.....\.....\.....\prime.log
.....\.....\.....\prime.obj
.....\.....\.....\prime.pch
.....\.....\.....\prime.write.1.tlog
.....\.....\.....\prime_manifest.rc
.....\.....\.....\rc.read.1.tlog
.....\.....\.....\rc.write.1.tlog
.....\.....\.....\stdafx.obj
.....\.....\.....\vc100.idb
.....\.....\.....\vc100.pdb
.....\.....\prime.cpp
.....\.....\prime.vcproj
.....\.....\prime.vcproj.idea-PC.Piko.user
.....\.....\prime.vcxproj
.....\.....\prime.vcxproj.filters
.....\.....\prime.vcxproj.user
.....\.....\ReadMe.txt
.....\.....\stdafx.cpp
.....\.....\stdafx.h
.....\.....\targetver.h
.....\UpgradeLog.XML

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