百度试题 结果1 题目7 is a prime number. ( ) 相关知识点: 试题来源: 解析 正确 反馈 收藏
解析 这是归纳法三段论,横线上填的是归纳原理,即the number that is not less than 4 is not a prime number结论应该是7 is (not) a prime number.多了一个not 更准确的讲,第一行应该是the number that is less than 4 is not a prime number第二行7 is not less than 4.第三行 7 is not...
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. ...
It is very good to know that 2 is the only even prime number. It is often handy to know the first eight or ten prime numbers. Notice that 1 does not fit the fundamental definition for a prime number: it has only one positive integer factor, itself, not two. Therefore, it is not p...
A prime number is an integer, or whole number, that can be divided evenly only by 1 and by itself.
Brain-buster Mohammed says that 7 is a prime number, and so is 17, so 27 must also be a prime number. Explain why he is wrong. 相关知识点: 试题来源: 解析 Brain-buster 27is not a prime number because it can be divided by 3 and 9. ...
1 从键盘上输入任意一个整数,然后判断该数是否为素数; 如果是素数则输出"This is a prime." 否则输出“This is not a prime.”输入输入任意一个整数n.输出判断n是否为素数,并输出判断结果: 如果n是素数则输出"This is a prime." 否则输出“This is not a prime.”样例输入3样例输出This is a prime.#...
The final factor may be a larger prime number (11, 13, 31, 41, etc.) but you can be sure that if the target number is not prime, there will certainly be a number between 2 and the square root of the target number that is a factor of the target number, and you can find the ...
2 is a prime number 3 is a prime number 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 ...
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. For example: 17 is a prime number because you cannot divide it (without a remainder) by any number except 17 or 1: ...