Question 127
Let $A = 2^7(7^{14} + 1) + 2^6 \cdot 7^{11} \cdot 10^2 + 2^6 \cdot 7^7 \cdot 10^4 + 2^4 \cdot 7^3 \cdot 10^6$.
Prove that the number $A$ ends with 14 zeroes.
Prove that the number $A$ ends with 14 zeroes.
MathNet 2018-part-01 — 181 problems (EN–VI) Question 127
Math Olympiad Vault · MathNet 2018-part-01 — 181 problems (EN–VI)