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If $$k_1, k_2$$ are natural numbers such that
(i) $$2^{k_1} \mid 10!$$ but $$2^{k_1 + 1} \mid 10!$$ and (ii) $$5^{k_2} \mid 10!$$ but $$5^{k_2 + 1} \mid 10!$$ then
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