Which of the following numbers is a prime number? A. 25 B. 27 C. 29 D. 30 相关知识点: 试题来源: 解析 C。25 可以被 5 整除,27 可以被 3 整除,30 可以被 2、3、5 整除。而 29 只能被 1 和 29 整除,所以 29 是质数。反馈 收藏 ...
Is 19 a prime number? Is 39 a prime number? Is 97 a prime number? Is 30 a prime number? Is 111 a prime number? Is 81 a prime number? Is 63 a prime number? Is 23 x 29 a prime number? Is 69 a prime number? Is 1,000,001 a prime number?
百度试题 结果1 题目Mary has 30 candies. The number 30 is ___. A. odd B. even C. prime D. composite 相关知识点: 试题来源: 解析 B。30 能被 2 整除,所以是偶数。反馈 收藏
4 is a factor,25!=4*1*2*3*5*6*...*25 25!指的是25阶乘=25*24*...*1 5显然是factor 6,7,8,9,10,...,25显然都是factor 26=2*13也是 27=3*3*3，25!中有3和9，所以也是factor 28=4*7,factor 29是prime 30=3*10 31prime 32=4*8,factor 33=3*11,factor 34=2*17,...
Why is 1 not a prime number? 1 is not a prime number because it has only one factor, namely 1. Prime numbers need to have exactly two factors. Why is 2 a prime number? 2 is a prime number because its only factors are 1 and itself. Is 51 a prime number? 51 is not a prime ...
30, what is the largest possible value of any of the three primes? A.19 B.23 C.27 D.29相关知识点: 试题来源: 解析 B 如果三个质数之和是30,那么这三个质数中最大的质数可能是多少? sum:和;prime number:质数;largest:最大的; 三个质数分别为2、5、23,所以选B....
• A prime number is any positive number that can only be divided by itself and the number 1. • There are 25 prime numbers up to 100: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97. • The opposite of...
百度试题 结果1 题目If the sum of three prime numbers is 30, what is the least prime number?( ). A. 2B. 3C. 5D. 7相关知识点: 试题来源: 解析 A 反馈 收藏
Prime numbers are any numbers that cannot be evenly divided by any integer other than 1 and itself. Or in other words, the only numbers that you can multiply to get a prime number are 1 and the prime number. Numbers that are not prime, or those with additional factors other than 1 and...
Prime numbers must be greater than one. Another way of saying this is that the only factors of a prime number are 1 and the number itself. What is a composite number? Acomposite numberis a positive whole number that can be made by multiplying twosmallerpositive whole numbers. ...