百度试题 结果1 题目【题目】Of the following, which is not a prime number(). A.11 B.31 C.41 D.51 相关知识点: 试题来源: 解析 【解析】D 反馈 收藏
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
百度试题 结果1 题目Which of the following is not a prime number? A. 2 B. 3 C. 4 D. 5 相关知识点: 试题来源: 解析 C 反馈 收藏
百度试题 结果1 题目Which of the following is a prime number? A A)19B)18C)22D)15E)None of these 相关知识点: 试题来源: 解析 A 反馈 收藏
Whenyouthinkyouknowwhatmakesanumberprimeornot,raiseyourhand.3isaprimenumber 3=1X3 4isnotaprimenumber 4=1X44=2X2 5isaprimenumber 5=1X5 6isnotaprimenumber 6=1X66=2X3 7isaprimenumber 7=1X7 12isnotaprimenumber 12=1X1212=2X612=3X4 13isaprimenumber 13=1X13 15isnotaprimenumber 15=1X...
bool prime(int Number){ int i;int n=sqrt(Number);for(i =2; i<=n,Number%i>0; ++i);ret...
We divide 507 by all the prime numbers smaller than 23. 507\div3 = 169 507 is not a prime number. (6) 28\times28=784 (> 741) We divide 741 by all the prime numbers smaller than 28. 741\div3 =247 741 is not a prime number.反馈...
14.Anumber is called" number" if it is the only natural number between a prime number and a perfect square(e. G. 10 is Beprisque but 12 is not).The number of two-digit Beprisque numbers (including 10)is (A)1 (B)2 (C)3 (D)4 (E)5 相关知识点: 试题来源: 解析 反馈 收藏...
Euclid's definition is: Prime numbers are that unit alone measured. Or trlated: A prime number is that which is measured by an unit alone. Rather than say 'measured ' we now say 'divisible ' but the idea is simple. Prime numbers are not multiples of other numbers (the unit...
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