Write a program to input any number of digits and display all non prime digits
INPUT:724
OUTPUT:4
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3
Answer:
import java.util.*;
class abc
{
public static void main(String args[])
{
int n=724; // you can also make it user input
int r=1;
while(n!=0)
{
r=n%10;
prime(r);
n=n/10;
}
}
int prime(int no)
{
int c=0;
for(int i=1;i<=no;i++)
{
if(no%i==0)
c++;
}
if(c==2)
System.out.print(no+" ");
}
Explanation:
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