What is the smallest number by which 392 should be multiplied so that the product is a perfect cube?
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Let us take the LCM of 392 first.
LCM of 392=2x2x2x7x7.
Therefore, 2 doesn't have a pair which means it must be multiplied to 392.
Hence, 392x2=784.
And... 784 is a perfect sq. and 2 is the smallest no. to be multiplied to 392
LCM of 392=2x2x2x7x7.
Therefore, 2 doesn't have a pair which means it must be multiplied to 392.
Hence, 392x2=784.
And... 784 is a perfect sq. and 2 is the smallest no. to be multiplied to 392
sanjaycharanr:
I wanted cube
oh.. rlly sry.. wait, let me try on this
I think it is 7
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