36 lines
737 B
JavaScript
Executable file
36 lines
737 B
JavaScript
Executable file
#!/usr/bin/node
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function getPrimeList(max) {
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if (typeof max !== 'number' || max < 2) {
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return [];
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} else if (max===2) {
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return [2];
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}
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let primes = [2];
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for(i=3; i<=max; i++) {
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let isPrime = true;
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for(prime of primes) {
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if (i % prime === 0) {
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isPrime = false;
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break;
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}
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}
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if (isPrime) {
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primes.push(i);
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}
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}
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return primes;
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}
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console.time();
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let primeList = getPrimeList(2000001);
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console.timeEnd();
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console.log("Found "+primeList.length+" prime numbers.");
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console.time();
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let primeSum = primeList.reduce( (sum, element) => sum + element);
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console.timeEnd();
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console.log(primeSum);
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