Question Number 226775 by aba_math last updated on 14/Dec/25
$${Prove}\:{that}\:\left({a}−{b}\right)\left({a}−{c}\right)\left({a}−{d}\right)\left({b}−{c}\right)\left({b}−{d}\right)\left({c}−{d}\right)\:{divisible}\:{by}\:\mathrm{12} \\ $$
Prove-that-a-b-a-c-a-d-b-c-b-d-c-d-divisible-by-12-