Problem 52664. List the Moran numbers

Created by ChrisR

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The quotient of a Moran number and its digit sum is prime. For example, 117 and 481 are Moran numbers because 117/(1+1+7) is 13 and 481/(4+8+1) = 37, and both 13 and 37 are prime. 
Write a function to list the Moran numbers less than or equal to the input number. 

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Last Solution submitted on Feb 02, 2025

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GeeTwo on 1 Dec 2024

@Tim, thanks for the idea of using ismember(). It greatly simplified my already simplest solution to date. All I did before was squeeze a literal implementation and make it work just fast enough to fit the one-minute filter..Your inspiration took me from four statements to two.

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Problem 52664. List the Moran numbers

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Primes and Rough Numbers, Basic ideas

Problem Recent Solvers13

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Problem 52664. List the Moran numbers

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Primes and Rough Numbers, Basic ideas

Problem Recent Solvers13

Suggested Problems

More from this Author291

Problem Tags

Community Treasure Hunt

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