I wanted a very big sequence of primes but why

prime.js

const seq1 = [2, 3];
const seq2 = [2, 3, 5];
const seq3 = [5, 7, 11, 13, 17];
const seq4 = [7, 11, 13, 17, 19, 23, 29];

const length = seq1.length * seq2.length * seq3.length * seq4.length;

const p = (seq, i) => seq[i % seq.length];

for (let i = 0; i < length; i++) {
    console.log(p(seq1, i) * p(seq2, i) * p(seq3, i) * p(seq4, i));
}

Notice how computed length is wrong because 2 and 3 are shared between first two sequences