Loading Discussion on question by Adam Rubinson: Given any odd number $a,$ do there exist distinct (odd) prime numbers $p_{k_i}$ such that the product $p_{k_1} p_{k_2}\cdots p_{k_n}\equiv 2\pmod a?$
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Discussion on question by Adam Rubinson: Given any odd number $a,$ do there exist distinct (odd) prime numbers $p_{k_i}$ such that the product $p_{k_1} p_{k_2}\cdots p_{k_n}\equiv 2\pmod a?$