A. It has only two factors. B. It has more than two factors. C. It is divisible by all numbers. D. It is always E. ven. 相关知识点: 试题来源: 解析 A。本题考查质数的概念。如果一个数是质数,那么它只有两个因数,1 和它本身。B 选项是合数的特点;C 选项错误;D 选项质数不一定是偶...
解析 Solutions:Since, the number is divisible by 12. Hence, it also divisible by its factors i.e 1, 2, 3, 4, 6, 12Therefore 1, 2, 3, 4, 6 are the numbers other than 12 by which this number is also divisible反馈 收藏
Irrational numbers are numbers that cannot be expressed as the ratio of two integers and have an infinite number of decimal places, such as pi or the square root of 2. Answer and Explanation:1 When a number is divisible by itself, the result is always 1. ...
What is the number of integers from (999, 9999) that are divisible by 4 and are not divisible by 5? Find the smallest positive integer for which x mod 3=2 and x mod 4=3? How many numbers between 1 and 250 are divisible by 6?
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...
What is the smallest positive number that isevenly divisibleby all of the numbers from 1 to 20? staticvoidMain(string[] args) {longstartTime, endTime; Int64 f=2;inti, j,k;int[] a =newint[20]; startTime=DateTime.Now.Ticks;for(i =0; i <20; i++) ...
check if variable is number in C# Check if vb.net string contains any letters or numbers Check if x is divisible by 5 check Null value in Rdlc Report check number of columns in a csv file check value exist in an array Check whether a Page is first loading or refreshing? Check whether...
to determine if the number is divisible by two, and then use the not operator to return the opposite value. for example, if the number is divisible by two, the modulus operator will return zero, which is false. applying the not operator will then return true, indicating that the number ...
prime number & composite number 质数与合数* A prime number is a positi 4、ve integer that has exactly two different positive divisors,1 and itself.* A composite number is a positive integer greater than 1 that has more than two divisors.* The numbers 1 is neither prime nor composite, 2 ...
simple example, if one circle represents every number between 1 and 25 and another represents every number between 1 and 100 that is divisible by 5, the overlapping area would contain the numbers 5, 10, 15, 20, and 25, while all the other numbers would be confined to their separate ...