百度试题 结果1 题目Which of the following numbers is divisible by 9?( ) A.123 B.234 C.345 D.456相关知识点: 试题来源: 解析 B If the sum of the digits is divisible by 9, so is the number.反馈 收藏
百度试题 结果1 题目d)If a number is divisible by 9, by what other number is it also divisible? 相关知识点: 试题来源: 解析 Thenumbermustalsobedivisibleby3. 反馈 收藏
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 反馈 收藏
Any integer divisible by 9 and 15 is divisible by 45. Since 45 is not even, it is not divisible by 6. So double 45 to get 90. 下面哪个正整数能同时被 6,9,15整除?( ). A.810 B.90 C.30 D.15 任意整数能被9和15整除的一定能被45整除.因为45不是偶数,所以一定不能被6整除,那么45的...
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 ...
一个正整数如果要被9整除，那么这个正整数每一个digit相加要可以被9整除（例如判断1233能不能被9整除，...
A positive integer is divisible by 9 if and only if the sum of its digits is divisible by 9. If n is a positive integer, for which of the following values of k is 25 × 10n + k× 102n divisible by 9? 选项: A、9 B、16 C、23 D、35 E、47 答案: E 经典答疑 发起提问 × ...
解析 C 12=22×3,15=3×5,而n能够被12和15整除,那么n就至少具有因子22,31,51,选项中哪个数能够由上面因子中的一个或者几个相乘得到,那么这个数就一定能够整除n;25具有两个因子5,不行;16具有4个因子2,也不行;30=2×3×5,2,3,5全部可以为n的因子,因此30一定能够整除n,选择C。
(1) Is 9184 divisible by 2? If not, what is the remainder? (2) Is 3725 divisible by 5? If not, what is the remainder? (3) Is 8245 divisible by 25? If not, what is the remainder? 相关知识点: 试题来源: 解析 (1) Yes (2) Yes (3) No. r20反馈...
divisible到底是能被除尽还是整除的意思 题目是这样的说n is divisible by both 5and 7 then n must also be divisible by 但是我觉得要是说是像字典里一样解释为除尽的话 那不是应该也能被70除尽么? 答案 能被5和7除尽的必定能被35除尽,但不一定能被70除尽,要能被70除尽,需要同时能被5,7,2除...