百度试题 结果1 题目Is 62 divisible by 3?A:yesB:no 相关知识点: 试题来源: 解析 B None
解析 D 哪个数可以整除3不能整除9? 考察3和9的整除特征: 各位数字之和能被3整除,则这个数能被3整除;各位数字之和能被9整除,则这个数能被9整除.结果一 题目 Which of the following numbers is divisible by 3 but not divisible by 9?A.333B.2015C.2016D.12345 答案 D相关推荐 1Which of the ...
百度试题 结果1 题目is exactly divisible by ( ) A. 2 B. 3 C. 9 D. 2 and 3 E. 2, 3, and 9 相关知识点: 试题来源: 解析 A 反馈 收藏
(1)n is divisible by 3(2)2n is divisible by twice as many as positive integers as n 相关知识点: 试题来源: 解析 (1)不一定,比如6 (2)n一定是奇数.如果n是奇数,那么2n的因子的数量是 n的因子的数量 的2倍.如果是偶数,则不然.证明不写了,给你举个例子 比如n=21 它的因子为 1,3,7,21,...
a对你有点感觉但是在以前 A little feels but to you in before [translate] aIf request.form("CompanyName")="" Then 正在翻译,请等待... [translate] aThen n is divisible by 3 if and only if the sum of its 然后n由3是可分的,如果和,只有当总和的它 [translate] ...
If a is an integer divisible by 3, and b is not divisible by 3, which of the following is...
把这两个式子代入xy+1可得: xy+1=(3m+1)(9n+8)+1 =27mn+24m+9n+84-1 =3(9mn4-8m+3n+3) 因此xy+1能被3整除,所以(1)+(2)充分。结果一 题目 If a, b, and c are integers, is the number 3 (a+b)-c divisible by 3 ?() (1)a+b is divisible by 3. (2)c is divis...
百度试题 结果1 题目【题目】"" is a positive even integer. "" is a positiveinteger, divisible by 3. What is the greatest value of "" such that ., is even, less than 100and divisible by 3? 相关知识点: 试题来源: 解析 【解析】2304 ...
Is the integer x divisible by 6 ? (1)x + 3 is divisible by 3. (2)x + 3 is an odd number. 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. C、BOTH stateme...
A number that is divisible by 3 has the sum of its digits divisible by 3. The number 210 satisfies all three conditions so 210 is the answer.我们首先考虑7的倍数来尽可能的减少数字量.在给定的范围内的7的倍数有203,210 ,217,\ldots ,294.因为数字必须能被5整除,所以必须以5或0结尾.而又因为...