If x is a prime number,y is an integer,and x21-x=2y2+3,then xy2=( )(英汉小辞典:prime number 质数,integer:整数) A. 8 B. 16 C. 32 D. 64 相关知识点: 试题来源: 解析 C 【分析】先根据x是质数判断出21-x是质数,故x21-x一定是质数;再根据y是整数可知y2一定是合数,故y2+3一定...
A. 1B. 2C. 3D. 4 相关知识点: 试题来源: 解析 D 因为a是素数且不等于5,所以a和5互质。因此,5a的素因子只有a和5。由于a是素数,它只有两个因子:1和a本身。所以,5a的因子有四个:1,a,5,5a。因此,5a有**4个**素因子。最终答案为D。
(2) There are a total of p prime numbers between 1 and 3,912. 选项: A、Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B、Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. ...
Step 2: Identify the nature of rSince r is stated to be a prime number greater than 2, we can conclude that r must be an odd number. This is because all prime numbers greater than 2 are odd. Hint: Any prime number greater than 2 must be odd. Step 3: Identify the nature of sTh...
If p is a prime number greater than 11,and P is the sum of the two prime numbers x and y,then x could be which of the following() A. 2 B. 5 C. 7 D. 9 E. 13 如何将EXCEL生成题库手机刷题 如何制作自己的在线小题库 > 手机使用 分享 反馈 收藏 举报 参考答案: A 复...
5. If x is a prime number, y is an integer, and x^(21-x)=2^(y^2+3) , then xy2 = ()(英汉 典: prime number质 , integer)(A)8.(B)16.(C)32.(D)64.译文 如果x是质数,y是整数,且 x^(21-x)=2^(y^2+3) ,那么 xy^2=( ) ...
相关推荐 1If p is a prime number greater than 2, which of the following could also be a prime number? ()A. 3pB. p+1C. p+2D. p+3 2【题目】If , is a prime number greater than 2, whichof the following could also be a prime number?(A.3pB.p+1C.p+2D.p+3 ...
条件二还要判断个数是不是质数，否则p不存在
Ifnis a prime number greater than 3, what is the remainder whenn2is divided by 12? 选项: A、0 B、1 C、2 D、3 E、5 答案: B 经典答疑 发起提问 提问: 点此查看答疑 老师您好,这道题我除了试数也看了管老师的视频,在视频中管老师把题写成了这样,我不太懂n=3A+1和n=3A+2是怎么出来的。
Knowledge Check If A={x:x ∈ N and x is an odd prime number less than 17}, then the cardinal number of A is A8 B6 C5 Dnone of theseSubmit Let A={x:x is a positive prime number less than 10} and B={x:x∈N and 0<x−2≤6}. Find P(A−B). View Solution Let A=...