Brainiac55 Brainiac55

09-08-2020
Mathematics

contestada

6) By which least number should each of the following numbers be divided to make them perfect squares?
a) 3920

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konrad509 konrad509

09-08-2020

3920|2

1960|2

980|2

490|2

245|5

49|7

7|7

1

[tex]3920=2^4\cdot5\cdot7^2=(2^2)^2\cdot5\cdot7^2[/tex]

It's 5

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