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Feb 18th, 2020
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  1. #include <stdio.h>
  2. #include <stdbool.h>
  3. #include <math.h>
  4.  
  5.  
  6.  
  7. int factorcalc(int num, int div) {
  8. return (num/div);
  9. }
  10.  
  11. int factorresto(int num, int div) {
  12. return (num%div);
  13. }
  14.  
  15.  
  16.  
  17. bool isPrime(int num) {
  18. int i, flag = 1;
  19. for (i = 2; i <= round(sqrt(num)); i++) {
  20. if (num % i == 0) {
  21. flag = 0;
  22. break;
  23. }
  24. }
  25.  
  26. if (flag == 1) {
  27. return true;
  28. }
  29. else {
  30. return false;
  31. }
  32.  
  33. return 0;
  34. }
  35.  
  36. int factor(int num, int array[]) {
  37. int savefactor[500];
  38. int e = 0;
  39. for (int t=0; t<500; t++) {
  40. while ((!isPrime(num)) && (factorresto(num, array[t]) == 0 )) {
  41. num = factorcalc(num, array[t]);
  42. savefactor[e] = array[t];
  43. printf("%d\n", savefactor[e]);
  44. e++;
  45. }
  46. }
  47. e++;
  48. if (num == 0) {
  49. e--;
  50. printf("Resultado-> %d", e);
  51. }else {
  52. printf("Resultado-> %d", e);
  53. }
  54. return 0;
  55.  
  56. }
  57.  
  58. int main() {
  59. int array[500] = {0};
  60. int countarray = 0;
  61.  
  62. for (int u=2; u<500; u++) {
  63. if (isPrime(u)) {
  64. array[countarray] = u;
  65. countarray++;
  66. }
  67. }
  68.  
  69.  
  70. factor(42259155, array);
  71. }
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