Problem 50948. Identify prime words

Created by ChrisR

Solve Later

{"parts":[{"partUri":"/matlab/document.xml","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:jc w:val=\"left\"/></w:pPr><w:r><w:t>In a </w:t></w:r><w:hyperlink w:docLocation=\"https://www.youtube.com/watch?v=9CcI5M1LfRs\"><w:r><w:rPr><w:u/></w:rPr><w:t>Numberphile video on evil primes</w:t></w:r></w:hyperlink><w:r><w:t>, Tony Padilla introduced the “Jesus prime” 105,192,119, which is formed by concatenating the positions of the letters of ‘Jesus’ in the English alphabet: 10, 5, 19, 21, 19. In general, a </w:t></w:r><w:r><w:rPr><w:i/></w:rPr><w:t>prime word</w:t></w:r><w:r><w:t> could be defined as a word such that the number formed by concatenating the positions of the letters in the alphabet is prime. </w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/><w:jc w:val=\"left\"/></w:pPr><w:r><w:t>Write a function that takes a string and identifies prime words. It should delete apostrophes and hyphens (e.g. “don’t” = “dont”, “un-ionized” = “unionized”) and treat other punctuation as spaces. The function should return an array of 0’s and 1’s.</w:t></w:r></w:p></w:body></w:document>","relationship":null}],"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","target":"/matlab/document.xml","relationshipId":"rId1"}]}

<div style = "text-align: start; line-height: 20.4333px; min-height: 0px; white-space: normal; color: rgb(0, 0, 0); font-family: Menlo, Monaco, Consolas, monospace; font-style: normal; font-size: 14px; font-weight: 400; text-decoration: rgb(0, 0, 0); white-space: normal; "><div style="block-size: 114px; display: block; min-width: 0px; padding-block-start: 0px; padding-top: 0px; perspective-origin: 407px 57px; transform-origin: 407px 57px; vertical-align: baseline; "><div style="block-size: 63px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 31.5px; text-align: left; transform-origin: 384px 31.5px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 13.6083px 7.91667px; transform-origin: 13.6083px 7.91667px; unicode-bidi: normal; "><span style="">In a </span></span><a target='_blank' href = "https://www.youtube.com/watch?v=9CcI5M1LfRs"><span style=""><span style="text-decoration: underline; text-decoration-line: underline; ">Numberphile video on evil primes</span></span></a><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 236.375px 7.91667px; transform-origin: 236.375px 7.91667px; unicode-bidi: normal; "><span style="">, Tony Padilla introduced the “Jesus prime” 105,192,119, which is formed by concatenating the positions of the letters of ‘Jesus’ in the English alphabet: 10, 5, 19, 21, 19. In general, a </span></span><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 34.625px 7.91667px; transform-origin: 34.625px 7.91667px; unicode-bidi: normal; "><span style="font-style: italic; ">prime word</span></span><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 20.6167px 7.91667px; transform-origin: 20.6167px 7.91667px; unicode-bidi: normal; "><span style=""> could be defined as a word such that the number formed by concatenating the positions of the letters in the alphabet is prime. </span></span></div><div style="block-size: 42px; font-family: Helvetica, Arial, sans-serif; line-height: 21px; margin-block-end: 9px; margin-block-start: 2px; margin-bottom: 9px; margin-inline-end: 10px; margin-inline-start: 4px; margin-left: 4px; margin-right: 10px; margin-top: 2px; perspective-origin: 384px 21px; text-align: left; transform-origin: 384px 21px; white-space: pre-wrap; margin-left: 4px; margin-top: 2px; margin-bottom: 9px; margin-right: 10px; "><span style="block-size: auto; display: inline; margin-block-end: 0px; margin-block-start: 0px; margin-bottom: 0px; margin-inline-end: 0px; margin-inline-start: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; perspective-origin: 368.425px 7.91667px; transform-origin: 368.425px 7.91667px; unicode-bidi: normal; "><span style="">Write a function that takes a string and identifies prime words. It should delete apostrophes and hyphens (e.g. “don’t” = “dont”, “un-ionized” = “unionized”) and treat other punctuation as spaces. The function should return an array of 0’s and 1’s.</span></span></div></div></div>

Solve

Solution Stats

24 Solutions
12 Solvers

Last Solution submitted on Oct 20, 2022

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

William on 14 Mar 2021

Chris,
In test suite problem 25, there seems to be an issue with the question mark after 'Africa'. The word Africa itself is a prime word, but the solution marks it as non-prime. Since the question mark is usually considered punctuation, I treated it as a space.

ChrisR on 14 Mar 2021

Thanks William. I fixed the test (and my own code).

Problem Recent Solvers12

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 50948. Identify prime words

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers12

Suggested Problems

More from this Author183

Problem Tags

Community Treasure Hunt

Problem 50948. Identify prime words

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers12

Suggested Problems

More from this Author183

Problem Tags

Community Treasure Hunt

Players