fixed division by 0 bug if (startNumber_ - stopNumber_ == 0)
fixed division by 0 bug if (startNumber_ - stopNumber_ == 0)

anatoliyrazin/primesieve,kimwalisch/primesieve,fredwang00/primesieve,kimwalisch/primesieve,tempbottle/primesieve,anatoliyrazin/primesieve,ZahidDev/primesieve,ZahidDev/primesieve,tempbottle/primesieve,anatoliyrazin/primesieve,ZahidDev/primesieve,fredwang00/primesieve,tempbottle/primesieve,fredwang00/primesieve,kimwalisch/primesieve