首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
If n = pqr, where p, q, and r are three different positive prime numbers, how many different positive divisors does n have, incl
If n = pqr, where p, q, and r are three different positive prime numbers, how many different positive divisors does n have, incl
admin
2009-05-19
77
问题
If n = pqr, where p, q, and r are three different positive prime numbers, how many different positive divisors does n have, including 1 and n?
选项
A、3
B、5
C、6
D、7
E、8
答案
E
解析
若n=pqr,其中p,q,r是3个不同的正质数(positive prime numbers),n有多少个不同的因子,包括1和n?
解:本题的正确答案为(E)。由因子数求解公式可得n=p×q×r,当p,q,r为质数时n的因子数为(1+1)(1+1)(1+1)=8个。
转载请注明原文地址:https://kaotiyun.com/show/CXkO777K
本试题收录于:
GRE QUANTITATIVE题库GRE分类
0
GRE QUANTITATIVE
GRE
相关试题推荐
Scientistssaidtheyhavefoundevidenceofagiantplanetfaroutinoursolarsystem.Inastatement,theCaliforniaInstitute
Spending50minuteswithacellphoneclosetoyourearisenoughtochangebraincellactivityinthepartofthebrainclosest
Computertechnologyisadvancingsofastthatoldhardwarequicklybecomescompletelyobsolete.Theelectronicwaster(e-waste)
Expertssaidtheresultswereinteresting,buturgedthattheybeunderstoodwithgreatcare.
Conversationbeginsalmostthemomentwecomeintocontactwithanotherandcontinuesthroughouttheday【B1】______theaidof
In1863,AbrahamLincolnwas______.WhichofthefollowingstatementsisNOTtrueaccordingtothepassage?
Outofallthestudentswhoenrollinamassiveopenonlinecourse(MOOC),onlyabout5percentcompletethecourseandreceive
Outofallthestudentswhoenrollinamassiveopenonlinecourse(MOOC),onlyabout5percentcompletethecourseandreceive
Englishisusedbymorepeoplethanis______languageexceptChinese.
Inarightisoscelestriangle,thelengthsofthetwononhypotenusesidesaredesignateda.Whatistheareaofthetrianglein
随机试题
Mycousindemandedthatshe______accompanymetothedoctor.
下列几种结构面中,哪一种不属于原生结构面?
管理者除了人际关系,信息传递的方面角色外,还有()
下列属于天象景观的有()。
台风中心从A地以每小时20千米的速度向东北方向移动,离台风中心30千米内的地区为危险区,城市B在A的正东40千米处。B城位于危险区的时间为()。
()是提高社会生产力和综合国力的战略支撑,必须摆在国家发展全局的核心位置。
左图是给定立体图形,将其从任一面剖开,问立体截面是?
若lnx是f(x)的一个原函数,则∫xf(e-x)dx=[].
坚持全面依法治国,是中国特色社会主义国家制度和国家治理体系的显著优势。我国社会主义法治凝聚着我们党治国理政的理论成果和实践经验,是制度之治最基本最稳定最可靠的保障。法治兴则国兴,法治强则国强。法治是()
OnthenightofOctober9,1799,aBritishvesselranaroundneartheDutchcoast,brokeupandsank.Itwasestimatedthat$100
最新回复
(
0
)