find the smallest number exactly divisible by 84,140 and 210.
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Answer:
420
Step-by-step explanation:
The smallest number divisible by each of 84,140 and 210 will be their LCM.
84=2²x3x7
140=2²x5x7
210=2x3x5x7
⇒LCM(84,140,210)=2²x3x5x7
=420
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