3. Find the lowest number by which 21. 168 must be divided in order to yield a perfect square please write with full method
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3. Find the lowest number by which 21. 168 must be divided in order to yield a perfect square please write with full method
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Answer:
21168= 2^4*3^3*7^2
=[(2^2*3*7)^2]*3
This dividing 21168 by 3 gives the perfect square.