Question

find the smallest square number which is divisible by 6,10 and 15​

Answer 1

TO FIND A NUMBER WHICH IS DIVISIBLE BY 6 , 10 AND 15, WE NEED TO FIND LCM.

$6 = 2 \times 3 \\ 10 = 2 \times 5 \\ 15 = 3 \times 5$

HENCE LCM =2*2*5*5*3*3

=4*25*9

=36*25=900

900 is the number which is divisible by 6,10and 15. Since they have all acted as a factor because we have multiplied them all (LCM) to get the number which is 900.

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