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let primes = [2];
function is_prime(num) {
for (let p of primes) {
if (p < num) {
if (num % p == 0)
return false;
}
else {
break;
}
}
return true;
}
function primorial(n) {
let p = 1;
while (n > 0) {
n--;
p *= primes[n];
}
return p;
}
function fill_primes(num) {
let i = 2;
while (primes[primes.length-1] < num) {
i++;
let cnt = 0;
for (let j = 0; j < primes.length; j++) {
if (i % primes[j] == 0)
cnt++;
}
if (cnt == 0)
primes.push(i);
}
}
function euclid(i) {
return 1 + primorial(i);
}
fill_primes(15000);
for (let i = 2; i < 8; i++) {
if (!(is_prime(euclid(i)))) {
console.log(euclid(i));
break;
}
}
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