将“which are"翻译成西班牙文 cuáles son, las cuales están, las cuales son是“which are"到 西班牙文 的最佳翻译。 译文示例:Which are the prime numbers? ↔ ¿Cuáles son los números primos? which are + 添加翻译 英文-西班牙文字典 ...
If x and y are different prime numbers, each greater than 2, which of the following must be true ?()Ⅰx+y≠91 Ⅱx-y is an even integer. Ⅲ is not an integer. A.条件(1)充分,但条件(2)不充分. B.条件(2)充分,但条件(1)不充分. C.条件(1)和(2)单独都不充分,但条件(1)和条件(...
1. Which of the numbers below cannot be expressed as a sum of two prime numbers?(A)19(B)20(C)21(D)22(E)23 相关知识点: 试题来源: 解析 1.答案:(E). 解 19=2+17、20=3+17、21=2+19 、22=3+19,而若能将23表示成两个质 数之和,这两个质数必为一奇一偶,故偶质数必为2,因此奇...
To determine which of the given numbers are prime, we need to check each number to see if it has only two factors: 1 and itself.Step 1: Understand what a prime number is. A prime number is a natural number greater than 1 that c
On prime numbers, for which (almost) all fermat numbers are quadratic non-residuesIt is well known that 3, 5, 7 are such primes. But in higher regions they appear only very rare. There exist many residue classes without such primes. Also other conditions for their existence are given. ...
A prime number is a positive integer having exactly two factors. If p is a prime, then the only factors it can have are 1 and p. Any number that does not fall into this category is said to as a composite number, meaning it may be factored into other posi
答案 E [解析] 此题应该采用排除法:5=2+3,9=7+2;13=11+2;16=3+13最后发现只有23不能分解成两个质数的和。相关推荐 1If x and y are prime numbers, which of the following CANNOT be the sum of x and y ?() A.5 B.9 C.13 D.16 E.23 反馈 收藏 ...
If p and r are prime numbers, which of the following must also be prime? A. pr B. p+r C. pr+1 D. p2+r2 E. None of the above 相关知识点: 试题来源: 解析E 正确答案:E 解析:若p和r是质数(prime number),则下面哪一个也一定是质数?解:本题的正确答案为(E)。此题可用排除法。质数...
A prime number is a positive integer having exactly two factors. If p is a prime, then the only factors it can have are 1 and p. Any number that does not fall into this category is said to as a composite number, meaning it may be factored into other posi
4. In Britain,ministers are appointed by the Queen on the recommendation of ___. A the Lord Chancellor B the Prime Minister C the Speaker D the Parliamentary Commissioner 5. The Middle Ages is also called the ___…… A“Age of Faith” B “Age of Christianity” C “Age of Holy Spiri...