Find-out-first-non-five-digit-from-right-in-the-expansion-of-1-3-5-625-

Question Number 15889 by RasheedSoomro last updated on 15/Jun/17

$$\mathrm{Find}\:\mathrm{out}\:\boldsymbol{\mathrm{first}}\:\boldsymbol{\mathrm{non}}-\boldsymbol{\mathrm{five}}\:\boldsymbol{\mathrm{digit}}\:\mathrm{from}\:\mathrm{right} \\ $$$$\mathrm{in}\:\mathrm{the}\:\mathrm{expansion}\:\mathrm{of}\:\left(\mathrm{1}×\mathrm{3}×\mathrm{5}×…×\mathrm{625}\right). \\ $$

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