百度试题 结果1 题目【题目】Which of the following numbers is prime? )A.1B.55C.71D.1617E.3334 相关知识点: 试题来源: 解析 【解析】C 反馈 收藏
Which of the following numbers is a prime number? A. 12 B. 15 C. 17 D. 18 相关知识点: 试题来源: 解析 C。本题考查质数的概念。质数是指一个大于 1 的自然数,除了 1 和它自身外,不能被其他自然数整除的数。12 可以被 2、3、4、6 整除;15 可以被 3、5 整除;18 可以被 2、3、6、...
Which of the following numbers is prime? ( ) A. B. C. D. E. None of these 相关知识点: 试题来源: 解析 E Prime numbers are whole numbers that have exactly two different factors. Of the answer choices: is not a whole number. has many factors. has only one factor....
Which one of the following numbers is a prime number?( ) A.111 B.113 C.117 D.119相关知识点: 试题来源: 解析 B 111=3×37,117=3×39,119=7×17;therefore111, 117 and 119 are all composite numbers; only 113 is a prime number.反馈 收藏 ...
试题来源: 解析 A No prime larger than 6 can be a factor of(1×2×3×4×5×6). 下面哪个不是(1×2×3×4×5×6)的因子( ). A.7 B.9 C.8 D.10 任何大于6的素数都不能是(1×2×3×4×5×6)的因子. 故选A.反馈 收藏
解析 D The factors of 49 are1,7 , and49, Since 49 has 3 factors, it has a prime number of factors. 下列哪个数的整数因子的个数是质数( ). A.6 B.12 C.36 D.49 49的因数是1,7和49,因为49有3个因数,所以它的因数个数是质数. 故选D....
单项选择题If p and r are prime numbers,which of the following must also be prime() A. pr B. p+r C. pr+1 D. p2+r2 E. None of the above 点击查看答案&解析 延伸阅读 你可能感兴趣的试题热门相关试卷 GRE-76(无图,混乱) 类型:模拟试题 GRE-68 类型:模拟试题 GRE-练习一(第4大题无...
If p and r are prime numbers, which of the following must also be prime? A. pr B. p+r C. pr+1 D. p2+r2 E. None of the above 相关知识点: 试题来源: 解析E 正确答案:E 解析:若p和r是质数(prime number),则下面哪一个也一定是质数?解:本题的正确答案为(E)。此题可用排除法。质数...
A.39的因数是3和13,因此,最大的因数是13, B.51的因数是3和17,因此,最大的因数是17, C.77的因数是7和11.因此,最大的因数是11, D.91的因数是7和13,因此,最大的因数是13, E.121的唯一因数是11.这使得11成为这个数字的最大因数. 因为我们在寻找具有最大的质数因数的数字,正确的答案是B.反馈...
百度试题 结果1 题目Which of the whole numbers 15, 23, 51, and 59 are prime numbers?相关知识点: 试题来源: 解析 23 and 59.反馈 收藏