百度试题 结果1 题目What is not a prime number? A. 13 B. 17 C. 21 D. 23 相关知识点: 试题来源: 解析 C。本题考查质数的概念。21 可以分解为 3×7,所以它不是质数。13、17、23 都只能被 1 和自身整除,是质数。反馈 收藏
A prime number is a number that has only two factors, that is 1 and the number itself.The smallest non-zero number is 1.The factor of 1 = 11 has only one factor which is 1 itself.The next smallest non-zero number is 2.Factors of 2 = 1 and 2It has only two factors, 1 and ...
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
What is the least prime number greater than 83? A. 85 B. 87 C. 88D. 89 E. 91 相关知识点: 试题来源: 解析 D 比83大的最小质数(prime number)是多少 因为质数是只有1和它本身而不再有其他因子的数,而(A)、(B)、(C)和(E)均有其他因子,所以此题的正确答案为(D)。反馈 收藏 ...
百度试题 结果1 题目Problem 8What is the smallest prime number dividing the sum 311+513? A(A)2 (B)3 (C)5 (D) 3^(11)+5^(13) (E)none of these 相关知识点: 试题来源: 解析 A 反馈 收藏
, 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....
The sum of two prime numbers is 85.What is the product of these two prime numbers?( )两个质数的和是85。这两个质数的乘积是多少?( ) A.85 B.91 C.115 D.133 E.166 【考点】质数与合数. 【答案】E 【解答】 【点评】 声明:本试题解析著作权属菁优网所有,未经书面同意,不得复制发布。
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The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29. There are 25 prime numbers between 1 and 100. Prime numbers include large numbers and can continue well past 100. For example, 21,577 is a prime number.List...
Is one a prime number?The simple answer to this question is no. Prime numbers have many different and interesting properties, which they would not have if the number one was prime. Therefore, the number 1 was excluded from the set of prime numbers. So the first prime number is 2....