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- #include <stdio.h>
- #include <stdlib.h>
- int isprime(int *n)
- {
- int i;
- for(i=2;i*i<=*n;i++)
- if(*n%i==0)
- return 0;
- return 1;
- }
- int main()
- {
- int n;
- scanf("%d",&n);
- if(isprime(&n))
- printf("Prime\n");
- else
- printf("Not prime\n");
- return 0;
- }
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