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The smallest positive integer that is divisible by every integer from 1 to 10 is

A2520
B1260
C5040
D3628800
Answer & Solution
Correct answer: A. 2520
It is $\text{lcm}(1,2,\ldots,10) = 2^3 \cdot 3^2 \cdot 5 \cdot 7 = 8\cdot9\cdot5\cdot7 = 2520$.
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