Stores the product of every pair of prime number
let prod = new Array ( ) ; SieveOfEratosthenes ( ) ; let l = primes . length ; for ( let i = 0 ; i < l ; i ++ ) { for ( let j = i + 1 ; j < l ; j ++ ) { if ( primes [ i ] * primes [ j ] > 0 ) prod . push ( primes [ i ] * primes [ j ] ) ; } }