Problem 365. Numbers with prime factors 2, 3 and 5.

Created by elias GR

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?><w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Make a function which takes one positive integer n and returns a matrix with the numbers of the form (2^i)*(3^j)*(5^k) which are lower or equal to n (i,j,k integers).</w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

446 Solutions
168 Solvers

Last Solution submitted on Aug 06, 2020

Last 200 Solutions

Problem Comments

3 Comments

3 Comments

Michael on 25 Mar 2020

The problem statement should specify that i, j, and k are non-negative integers or the number of answers becomes infinite.

Michael on 25 Mar 2020

Also, why is 1 not included in all of the answers. 2^0*3^0*5^0 = 1

Rafael S.T. Vieira on 16 Jul 2020 at 3:24

This problem requests the set of hamming numbers without the number one for some reason. https://rosettacode.org/wiki/Hamming_numbers

Problem Recent Solvers168

Problem Tags

factors primes

Problem 365. Numbers with prime factors 2, 3 and 5.

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers168

Suggested Problems

More from this Author2

Problem Tags

Problem 365. Numbers with prime factors 2, 3 and 5.

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers168

Suggested Problems

More from this Author2

Problem Tags

Players