In general, there are two types of divisibility checks; the first involves composite divisors and the second prime divisors, including powers of prime numbers (technically composite divisors, though they often function similar to prime numbers for the sake of divisibility). We'll get into the specifics of the two divisibility check types in subsequent problems. For now, we'll segregate numbers into three groups, based on type (n_type) while also returning the number's highest-power factorization (hpf). Write a function to return these two variables for a given number; see the following examples for reference:
n = 11 | n_type = 1 (prime) | hpf = [11] n = 31 | n_type = 1 (prime) | hpf = [31] n = 9 | n_type = 2 (prime power) | hpf = [9] (3^2) n = 32 | n_type = 2 (prime power) | hpf = [32] (2^5) n = 49 | n_type = 2 (prime power) | hpf = [49] (7^2) n = 21 | n_type = 3 (composite) | hpf = [3,7] n = 39 | n_type = 3 (composite) | hpf = [3,13] n = 42 | n_type = 3 (composite) | hpf = [2,3,7] n = 63 | n_type = 3 (composite) | hpf = [9,7] ([3^2,7]) n = 90 | n_type = 3 (composite) | hpf = [2,9,5] ([2,3^2,5])
Previous problem: divisible by 16. Next problem: Divisible by n, prime divisors (including powers).
Solution Stats
Problem Comments
Solution Comments
Show commentsProblem Recent Solvers115
Suggested Problems
-
Matrix indexing with two vectors of indices
780 Solvers
-
Getting the indices from a vector
12222 Solvers
-
Magic is simple (for beginners)
11549 Solvers
-
Simple equation: Annual salary
4265 Solvers
-
Area of an equilateral triangle
6903 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!