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कौन सा न्यूनतम धनात्मक पूर्णांक n 180 × n को 168 और 225 दोनों से विभाज्य बनाता है?

A35
B42
C70
D140
Answer & Solution
Correct answer: C. 70
चूँकि LCM(168, 225) = 12600 तथा 12600 ÷ 180 = 70, न्यूनतम धनात्मक गुणक है 70.
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