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# An integer n is called perfect provided it equals the sum of all its divisors that are ISBN: 9780840049421 447

## Solution for problem 3.13 Chapter 3

Mathematics: A Discrete Introduction | 3rd Edition

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Problem 3.13

An integer n is called perfect provided it equals the sum of all its divisors that are both positive and less than n. For example, 28 is perfect because the positive divisors of 28 are 1, 2, 4, 7, 14, and 28. Note that 1 C 2 C 4 C 7 C 14 D 28. a. There is a perfect number smaller than 28. Find it. b. Write a computer program to find the next perfect number after 28.

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MAT 211­ Lecture 3­ Section 15.1 (Cont.) Position of Two Planes in the xyz plane can: ­be parallel ­OR intersect in a line (called a line of intersection) ­Ex.: At which line the plane z= ­3x­2y+6 and the yz coordinate plane intersect yz coordinate plane­­­­­> x=0 z= ­2y+6 ­Ex.: At which line the...

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##### ISBN: 9780840049421

This full solution covers the following key subjects: . This expansive textbook survival guide covers 69 chapters, and 1110 solutions. Mathematics: A Discrete Introduction was written by and is associated to the ISBN: 9780840049421. Since the solution to 3.13 from 3 chapter was answered, more than 209 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Mathematics: A Discrete Introduction, edition: 3. The answer to “An integer n is called perfect provided it equals the sum of all its divisors that are both positive and less than n. For example, 28 is perfect because the positive divisors of 28 are 1, 2, 4, 7, 14, and 28. Note that 1 C 2 C 4 C 7 C 14 D 28. a. There is a perfect number smaller than 28. Find it. b. Write a computer program to find the next perfect number after 28.” is broken down into a number of easy to follow steps, and 79 words. The full step-by-step solution to problem: 3.13 from chapter: 3 was answered by , our top Math solution expert on 03/15/18, 06:06PM.

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