The prime factorization of a given positive number N is the set of prime numbers that when multiplied together give N. For instance, the prime factorization of N=8, is {2,2,2} since 2x2x2 = 8 and the prime factorization of 24 is {2,2,2,3} since 2x2x2x3 =24.

C++ Programming: From Problem Analysis to Program Design
8th Edition
ISBN:9781337102087
Author:D. S. Malik
Publisher:D. S. Malik
Chapter5: Control Structures Ii (repetition)
Section: Chapter Questions
Problem 7PE
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Please use C programming to solve, not C++

Using this algorithm or otherwise, write a C function that computes the prime
factorisation of a number, given as input. The function should write in an
output parameter, the total number of factors. In particular, the function
should have the following prototype declaration:
void primeFactors(int n, int a[], int *num_factorsp);
n is an input parameter, corresponding to the number to be factorised.
a[] is an array, which is empty on input, but which contains all of the factors on
output from the function
num_factorsp is an output parameter that contains the total number of factors
in a[].
For example:
Test
Result
primeFactors (8, a, &numFactors);
2 2 2
primeFactors (1001,a,&numFactors); 7 11 13
Transcribed Image Text:Using this algorithm or otherwise, write a C function that computes the prime factorisation of a number, given as input. The function should write in an output parameter, the total number of factors. In particular, the function should have the following prototype declaration: void primeFactors(int n, int a[], int *num_factorsp); n is an input parameter, corresponding to the number to be factorised. a[] is an array, which is empty on input, but which contains all of the factors on output from the function num_factorsp is an output parameter that contains the total number of factors in a[]. For example: Test Result primeFactors (8, a, &numFactors); 2 2 2 primeFactors (1001,a,&numFactors); 7 11 13
The prime factorization of a given positive number N is the set of prime
numbers that when multiplied together give N. For instance, the prime
factorization of N=8, is {2,2,2} since 2x2x2 = 8 and the prime factorization
of 24 is {2,2,2,3} since 2x2x2x3 =24.
Transcribed Image Text:The prime factorization of a given positive number N is the set of prime numbers that when multiplied together give N. For instance, the prime factorization of N=8, is {2,2,2} since 2x2x2 = 8 and the prime factorization of 24 is {2,2,2,3} since 2x2x2x3 =24.
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