Problem 44227. Divisible by 21
Write a function to determine if a number is divisible by 21.
Solution Stats
Problem Comments
-
4 Comments
Show
1 older comment
Jean-Marie Sainthillier
on 30 May 2017
A lot of why ...
goc3
on 31 May 2017
The problem maker in this case (no pun intended) simply copied the test case from my Divisible by 7 problem and made some edits, but obviously not enough to make it solvable. I've greatly simplified the test suite for this problem so that it is now solvable.
Jean-Marie Sainthillier
on 1 Jun 2017
Thanks Grant.
Solution Comments
Show commentsProblem Recent Solvers51
Suggested Problems
-
Replace NaNs with the number that appears to its left in the row.
3016 Solvers
-
777 Solvers
-
169 Solvers
-
Back to basics - mean of corner elements of a matrix
433 Solvers
-
Find remainder when x is divided by 3
162 Solvers
More from this Author14
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!