Express each of the following numbers as the sum of three odd primes: (a) 21 (b) 31 (c) 53 (d) 61 View Solution Which of the following is a prime number? (a) 203 (b) 139 (c) 115 (d) 161 View Solution Which of the following are not twin-primes?
real number Any of the rational numbers (which include the integers) or irrational numbers. Real numbers exclude imaginary numbers, found in complex numbers of the general form a+ bi where i=$$ \sqrt { - 1 } $$.although these do include a real component a. 相关知识点: 试题来源: ...
题目Which of the following numbers is NOT the sum of three consecutive odd integers A. 15 B. 75 C. 123D. 297 E. 313 相关知识点: 试题来源: 解析 E 下列哪一个不是3个连续奇整数(consecutive odd integer)的和 设3个连续奇整数分别为2n+1,2n+3,2n+5,其中n为正数,则3个连续奇整数的和=(...
Interesting positive integersidoneal numbersCarmichael numbersWieferich primesMersenne primesFermat primesBernoulli numbersKaprekar constantSkewes constantslook-and-say sequenceTo Ramanujan, each number was a personal friend in whose company, a lifetime he did spend. Let us too begin this quest to befriend...
The set of rational numbers is the set of numbers that are of them formpq, wherepandqare integers andq≠0. The set of integers is given by the set{...,−3,−2,−1,0,1,2,3,...}. The set of irrational numbers contains the numbers that are ...
aWrite a program which will determine whether or not numbers are cyclic. The input file is a list of integers from 2 to 60 digits in length. (Note that preceding zeros should not be removed, they are considered part of the number and count in determining n. Thus, "01"is a two-digit...
real number Any of the rational numbers ( which include the integers ) or irrational numbers. Real numbers exclude imaginary numbers, found in complex numbers of the general form a + bi where i =-1,although these do include a real component a. 相关知识点: 试题来源: 解析 优质解答 反...
Because n and m are both natural numbers, the sum of n and m is another natural number, n + m. Natural numbers are a subset of integers, integers are a subset of rational numbers, rational numbers are a subset of real numbers, and real numbers are a subset of complex numbers. Therefo...
Being a subring of the complex numbers, it is an integral domain. Thus, every prime element is irreducible. If an element of this ring is a product of primes, then it is a product of irreducibles. Thus, it suffices to show that the ring of all algebraic integers contains no irreducibl...
Which pattern of numbers is exponential?Answer and Explanation: An exponential pattern of numbers is described using an exponential function. You candescribe such a pattern of numbers by b^n where n = 1,2,3,... and b is some number. Note that you get to the next number in the series...