Test added to discourage lookup table solutions.
In the problem description, r1 and r2 appear to be upside down.
Corrected. Thanks, Tim.
Longest Divisor Run
Create a cell array out of a struct
Matrix indexing with two vectors of indices
Reindex a vector
Locate a family on a long street
Find the last non-zero digit in a primorial
Construct the Seidel-Entringer-Arnold triangle
Compute the nth term from the golden sieve
Create a sequence of primes p such that p > n π(p)
Find the treasures in MATLAB Central and discover how the community can help you!
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office