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2021年3月12日版 What Is a Prime Number? 2021-10-22 20:47:2301:07 11 所属专辑:Shanghai Student’s Post|2020 喜欢下载分享 声音简介What Is a Prime Number? 第2718期什么是质数? 用户评论 表情0/300发表评论 暂时没有评论,下载喜马拉雅与主播互动音频列表...
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 number because it has 3 and 17 ...
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....
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
We explain what prime numbers are and give examples of the types of questions KS2 children might be asked to test their knowledge of prime numbers. What is a prime number? A prime number is a number greater than 1 that cannot be divided evenly by any number other than itself or 1. ...
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Is 1 a prime number? No, 1 is not a prime number because it is not greater than 1. Is 2 a prime number? Yes, 2 is a whole positive number that is only divisible by itself and 1. 2 is also the only exception to the rule that a prime number must be odd. ...
A prime number is an integer, or whole number, that can be divided evenly only by 1 and by itself.
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。