If n is a positive integer and k = 5.1 × 10^n DS16168

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GMAT DS16168

If n is a positive integer and k = 5.1 × 10^n, what is the value of k ?

(1) 6,000 ﹤ k ﹤ 500,000
(2) k^2 = 2.601 × 109

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