Amicable Numbers The Greeks considered the pair of numbers 220 and 284 to be amicable or friendly numbers because the sum of the proper divisors of one of the numbers is the other number.
The sum of the proper factors of 220 is
The sum of the proper factors of 284 is
Determine whether
- 60 and 84 are amicable numbers.
- 1184 and 1210 are amicable numbers.
Trending nowThis is a popular solution!
Chapter 6 Solutions
Mathematical Excursions (MindTap Course List)
- Arranging Books In how many ways can five different mathematics books be placed on a shelf if the two algebra books are to be placed next to each other?arrow_forwardLicense Plate Numbers In a certain state, each automobile license plate number consists of two letters followed by a four-digit number. To avoid confusion between “O” and “zero” and between “I” and “one,” the letters “O” and “I” are not used. How many distinct license plate numbers are possible in this state?arrow_forward(a) What does the set of natural numbers consists of? What does the set of integers consist of? Give an example of an integer that is not a natural number. (b) What does the set of rational number consist of? Give an example of a rational number that is not an integer. (c) What does the set of rational numbers consist of? Give an example of an irrational number. (d) What does the set of real numbers consist of?arrow_forward
- Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALCollege AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningAlgebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage
- Algebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningCollege Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning