46 lines
1 KiB
JavaScript
Executable file
46 lines
1 KiB
JavaScript
Executable file
#!/usr/bin/js24
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function isPrime(num) {
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if (num === 3) {
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return true;
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}
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if (num % 2 === 0) {
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return false;
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}
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for (let i = 3; i <= Math.sqrt(num); i++) {
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if (num % i === 0) {
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return false;
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}
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}
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return true;
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}
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const MAX = 5e7;
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let primes = [2, 3, 5, 7];
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for(let i=10; i<Math.sqrt(MAX); i++) {
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if (isPrime(i)) {
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primes.push(i);
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}
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}
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print("found "+primes.length+" prime numbers");
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let sumSet = new Set();
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for(let index4=0; index4 < primes.length; index4++) {
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let fourth = primes[index4] * primes[index4] * primes[index4] * primes[index4];
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for(let index3=0; index3 < primes.length; index3++) {
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let cube = primes[index3] * primes[index3] * primes[index3];
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for(let index2=0; index2 < primes.length; index2++) {
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let sum = fourth + cube + primes[index2] * primes[index2];
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if (sum >= MAX) {
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break;
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}
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sumSet.add(sum);
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}
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}
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}
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print("found "+sumSet.size+" numbers");
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