One way to see if a number x is prime is to compute the remainders obtained when dividing x by all integers from 2 to √(x). If x is prime, then all remainders will be non-zero.
For example, if x = 35 then √(x)=5.916, and the set of divisors from 2 to √(x) are [2 3 4 5]. The remainders obtained when dividing 35 by 2,3,4,5 are 1,2,3,0 respectively. Since one of the remainders is 0, the number x is not prime.
Write a function that will compute the remainders obtained when dividing x by all integers from 2 to √(x).
Avoid using for/while loops.
Solution Stats
Problem Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers52
Suggested Problems
-
Sum of first n positive integers
621 Solvers
-
Back to basics - mean of corner elements of a matrix
459 Solvers
-
1809 Solvers
-
1043 Solvers
-
Create a square matrix of zeros of even order
180 Solvers
More from this Author52
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
