If a whole number is divisible by , then it must be divisible by ( ). A: B: C: D: 相关知识点: 试题来源: 解析 D Of the following choices, only is a factor of . 如果一个整数能被整除,那么它一定能被( ) 整除. ... 在下列选项中,只有是的因数. 故选.反馈...
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
If a number A is divisible by B, then A is a multiple of B, and B is a factor of A.(When we consider a multiple of a number, we usually don't consider 0.)For example:30÷5=6, 30 is a multiple of 5, and 5 is a factor of 30.24÷2=12,is a multiple of, andis a f...
抽屉原理 If no ak is divisible by n, then by Pigeon-hole Principle,there exist k < l such that ak=al.这句没看懂,谁能解释一下为什么? 相关知识点: 试题来源: 解析 任何一个数除以n的余数,可以是0, 1, 2, ..., n-1 总共是n种可能,当余数是0的时候,表示正好整除。 因为这边假设都不...
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。
Check if any number is divisible by two. Type in any number that you want, and the calculator will use the rule for divisibility by 2 to explain the result. See what the rule for divisibility by two has to say about the following number: ...
Since the greatest common factor of 12 and 20 is 4, the least common multiple is 12 * 20 ÷ 4 = 60. (Notice that 60 is 12 * 5 and also 20* 3.) Notice that the only integer among the choices that is a factor of 60 is (A) 15....
百度试题 结果1 题目【题目】4 If a is divisible byb, then a is called aof b, and b is called aof a. 相关知识点: 试题来源: 解析 【解析】multiple 反馈 收藏
百度试题 结果1 题目If E is an even number, and F is divisible by three, then what is the largest number by which E^2F^3 must be divisible? () A. 6 B. 12 C. 54 D. 108 E. 144 相关知识点: 试题来源: 解析 D 反馈 收藏
解析 C 由题意可知A是4的倍数,B是5的倍数,那么a+b是不能确认是否是20的倍数的,A×B的话是20的倍数,A×20也是20的倍数,所以第二个和第三个都是20的倍数,故答案选C.结果一 题目 If A is divisible by 4 and B is divisible by 5, which of the following expressions must be divisible by 20...