Ques:
The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.
Find the sum of all the primes below two million.
Ans:
public static void main(String[] args) {
int count = 0;
int pcount=1;
int tarprnum=10001;
int sump=2;
for (int i = 3; i < 2000000; i++) {
count=0;
for (int j = 2; j < i; j++) {
if (i % j == 0) {
count++;
break;
}
}
if(count==0){
pcount++;
sump+=i;
}
}
System.out.println("sum="+sump);
}
}
The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17.
Find the sum of all the primes below two million.
Ans:
public static void main(String[] args) {
int count = 0;
int pcount=1;
int tarprnum=10001;
int sump=2;
for (int i = 3; i < 2000000; i++) {
count=0;
for (int j = 2; j < i; j++) {
if (i % j == 0) {
count++;
break;
}
}
if(count==0){
pcount++;
sump+=i;
}
}
System.out.println("sum="+sump);
}
}
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