Problem 3. Find all the positive primesp such that 9p +1 is a perfect cube. Namely, such that there exists an integer x with 9p+ 1 = .
Problem 3. Find all the positive primesp such that 9p +1 is a perfect cube. Namely, such that there exists an integer x with 9p+ 1 = .
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
Please note that p=111 is not a right answer since it’s not a prime and everytime I’ve asked this question they answered it with 111. One of the right answers is 7 however so please include that in the answer for p
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there exists an integer x with 9p+1 = x³."
Transcribed Image Text:Problem 3. Find all the positive primes p such that 9p +1 is a perfect cube. Namely, such that
there exists an integer x with 9p+1 = x³.
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