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Smallest prime number Program in C
WhatsApp
Ashish Srivastava
Apr 03
2016
4.3
k
0
0
#include<stdio.h>
#include<conio.h>
int
prime(
int
);
void
main()
{
int
n,f=0;
clrscr();
printf(
"\nEnter the number"
);
scanf(
"%d"
,&n);
if
(n==2)
{
printf(
"The number is prime"
);
}
else
if
(n<2)
{
printf(
"The smallest prime number is 2"
);
}
else
{
f=prime(n);
if
(f)
{
printf(
"Number is prime"
);
}
else
printf(
"Not prime"
);
}
getch();
}
int
prime(
int
a)
{
static
int
d=2,flag=1;
if
(d==a)
{
return
(0);
}
else
{
if
(a%d==0)
{
flag=0;
d++;
}
else
{
d++;
flag=1;
prime(a);
}
}
return
(flag);
}
Smallest prime number Program in C
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Smallest prime number Program in C