A) \[{{2}^{9}}\times {{7}^{3}}\]
B) \[{{2}^{4}}\times {{3}^{2}}\]
C) \[{{2}^{4}}\times {{3}^{2}}\]
D) None of these
Correct Answer: A
Solution :
\[512\times 343\] \[2\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times 2\times 7\times 7\times 7={{2}^{9}}={{7}^{3}}\]
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