Problem 42454. Divisible by n, prime divisors (including powers)
For this problem, you will be provided an array of numbers (not necessarily in order). Return the array of numbers with only prime divisors (including prime powers) remaining in the array. For example:
n = 1:10; n_p = [2 3 4 5 7 8 9];
Since the prime numbers in the 1:10 range are 2, 3, 5, and 7, while the prime powers in this range are 4 (2^2), 8 (2^3), and 9 (3^2). (Ignore one, as it is a trivial case since all integers are divisible by one.) Therefore, you should return the array including both sets joined together and sorted, as shown in the example above.
Previous problem: Divisible by n, prime vs. composite divisors. Next problem: Divisible by n, prime divisors - 11, 13, 17, & 19.
Solution Stats
Solution Comments
Show commentsProblem Recent Solvers90
Suggested Problems
-
The Hitchhiker's Guide to MATLAB
3327 Solvers
-
We love vectorized solutions. Problem 1 : remove the row average.
832 Solvers
-
Sum of first n positive integers
591 Solvers
-
Mersenne Primes vs. All Primes
723 Solvers
-
929 Solvers
More from this Author139
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!