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- #include<stdio.h>
- int main()
- {
- int flag=1,i, n;
- printf("enter number ::");
- scanf("%d",&n);
- for(i=2;i<n;i++)
- {
- if(n%i==0)
- {
- flag=0;
- break;
- }
- }
- if(flag==1)
- {
- printf("prime");
- }
- else
- {
- printf("not prime");
- }
- return 0;
- }
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