Which of the following numbers is prime? ( ) A. B. C. D. E. None of these 相关知识点: 试题来源: 解析 E Prime numbers are whole numbers that have exactly two different factors. Of the answer choices: is not a whole number. has many factors. has only one factor....
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 ...
百度试题 结果1 题目【题目】Which of the following numbers is prime? )A.1B.55C.71D.1617E.3334 相关知识点: 试题来源: 解析 【解析】C 反馈 收藏
百度试题 结果1 题目Which of the following are prime numbers: (A) 2 (B) 3 (C) 6 (D) 9 (E) 10 (F) 11相关知识点: 试题来源: 解析 (1) (2)(6) 反馈 收藏
Which of the following numbers are divisible by 2? Which are divisible by 5? 234, 789, 7756, 8865, 3728.相关知识点: 试题来源: 解析 234, 7756, and 3728 are divisible by 2. 8865 is divisible by 5. To see whether a number is divisible by 2 or 5, we look at the number's ones ...
解析 D The factors of 49 are1,7 , and49, Since 49 has 3 factors, it has a prime number of factors. 下列哪个数的整数因子的个数是质数( ). A.6 B.12 C.36 D.49 49的因数是1,7和49,因为49有3个因数,所以它的因数个数是质数. 故选D....
289 and 784 are perfect squares. The square root of 289 is 17; the square root of 784 is 28. Perfect squares can only have 0, 1, 4, 5, 6, 9 on the ones place. We can filter some of the numbers with the above pattern. Then we can filter others by finding the perfect squares...
因为我们在寻找具有最大的质数因数的数字,正确的答案是B.结果一 题目 Which of the following numbers has the largest prime factor?( ).A.39B.51C.77D.91E.121 答案 B相关推荐 1Which of the following numbers has the largest prime factor?( ).A.39B.51C.77D.91E.121 反馈 收藏 ...
Step 1: The only factors of a prime number are 1 and itself, and 1 isn't a prime number.Step 2: Find all factors of the numbers:The factors of 6 : 1, 2, 3, 6.The factors of 3 : 1, 3.The factors of 9 : 1, 3, 9.Step 3: 3 is a prime number.The correct answer is ...
Which one of the following numbers is a prime number?( ) A.111 B.113 C.117 D.119相关知识点: 试题来源: 解析 B 111=3×37,117=3×39,119=7×17;therefore111, 117 and 119 are all composite numbers; only 113 is a prime number.反馈 收藏 ...