首页
登录
职称英语
The product of two consecutive positive integers CANNOT beA、a prime numberB、div
The product of two consecutive positive integers CANNOT beA、a prime numberB、div
游客
2024-01-12
49
管理
问题
The product of two consecutive positive integers CANNOT be
选项
A、a prime number
B、divisible by 17
C、a multiple of 13
D、an even number less than 10
E、a number having 4 as its units digit
答案
E
解析
此题可采用排除法。A有反例:1×2=2为质数;B有反例:17×18可以被17整除;C有反例:13×14是13的倍数;D有反例:2×3=6<10;因此选E。再来看看E为什么不对:因为4=1×4=2×2,若乘积个位数为4,则需由个位数为1和个位数为4的两个数,或者个位数均为2的两个数相乘,不可能是两个连续整数的乘积。
转载请注明原文地址:https://tihaiku.com/zcyy/3355269.html
相关试题推荐
Statisticsoverfourconsecutiveyearsshowedthatfourpercentmoreautomobile
Thehighcostofproductionisseverelylimitingwhichoperasareavailabletot
IntestsforPironoma,aseriousdisease,afalsepositiveresultindicatesthat
Somecleaningfluids,syntheticcarpets,wallpaneling,andotherproductsrelea
Correctlymeasuringtheproductivityofserviceworkersiscomplex.Consider,fo
Inflationinmedicalcostsslowedin1986forthefifthconsecutiveyearbutwer
Thereportonthegrossnationalproduct-thenation’stotalproductionofgoods
AmericanproductivityisdeclininginrelationtoEurope’s;theenergyexpended
Thesensationofpaincannotaccuratelybedescribedas"located"atthepoi
Thesensationofpaincannotaccuratelybedescribedas"located"atthepoi
随机试题
Theforwardmarketalsoprovidesfacilitiesforforwardcurrencytransaction
Ofalltheareasoflearningthemostimportantisthedevelopmentofattitu
求和平、促发展、谋合作是世界各国人民的共同心愿,也是不可阻挡的(irresistible)历史潮流。特别是世界多极化(multi—polarizatio
国家建设征用的土地的所有权属于( )。A.国家 B.集体 C.个人 D.
预应力混凝土桥梁用塑料波纹管低温落锤冲击试验的真实冲击率TlR最大允许值为(
下列药物中能用于治疗泻痢腹痛及疝气痛的是A、神曲 B、山楂 C、麦芽 D、
下列关于可转换债券的说法中错误的是()。A.可转换债券其有效期限与一般债券相
下列关于股份有限公司新股发行的说法中,错误的是( )。A.公司发行新股,股东大
带着感情和温度打赢脱贫攻坚战 事实反复证明,单纯的钱袋子鼓起来不能实现稳定
某工程在施工过程中,因不可抗力造成在建工程实体损失15万元。承包方受伤人员医药费
最新回复
(
0
)