optimal prime
and suboptimal prime
amazon made a terrible error in not scheduling its prime day on 7-11 or 7-13, both of which constitute 2 primes. 7-12 is just a terrible terrible choice.
amazon made a terrible error in not scheduling its prime day on 7-11 or 7-13, both of which constitute 2 primes. 7-12 is just a terrible terrible choice.