Nhap So N Tinh Tong V Chuyen Tahnh So Nt
#include<stdio.h>#include<conio.h>int tongchuso(long n){int s=0, du;while(n>0){du=n%10;//du la so hang don vis=s+du;//cong so hang don vi vao sn=n/10;//cat bo chu so hang con vi}return s;}void thuaso_nt(long n){int i;while(n>1){for(i=2;i<=n;i++)//SO DAU TIEN N CHIA HET CHAC CHAN LA SO NGUYEN TO{if(n%i==0){printf("%4d",i);n=n/i;break;//THOAT RA DE THUC HIEN KIEM TRA LAI TU 2}}}}void main(){long n;printf("nhap n=");scanf("%ld",&n);printf("tong cac chu so cua n la %d",tongchuso(n));printf("phan tich ra thua so nguyen to "); thuaso_nt(n);getch();}
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