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- function isPrime(num) {
- if(num === 2 || num === 3){
- return true;
- }
- for(let i =2; i<=Math.floor(Math.sqrt(num)); i++){
- if(num % i === 0){
- return false;
- }
- }
- return true;
- }
- function primeSummation(n) {
- let sum = 0;
- let i;
- for(i=2; i<n; i++){
- let bool = isPrime(i);
- if(bool){
- sum += i;
- }
- }
- return sum;
- }
- primeSummation(2000000);
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