Question

Find the smallest square number divisible by 5,10,15,20 and 25.

PLEASE NO IRRELEVANT ANSWERS​

Answer 1

Answer:

25

Step-by-step explanation:

smallest to be 5*5=25

Answer 2

900 is the smallest square number divisible by $5,10,15,20 and 25.$.

Given:

The series $5,10,15,20 and 25.$

To find:

The smallest square number divided by $5,10,15,20 and 25$ in their LCM.

Step-by-step explanation:

LCM of  $5,10,15,20 and 25$  is 300

Here, the prime factor of 300 is $\[2\times 2\times 3\times 5\times 5\]$

Hence Prime factors 3 do not have their respective pairs. Therefore,300 is not a perfect square.

Therefore 300 is multiplied by 3  to make a perfect square.

$\[300\times 3=900$

Hence the smallest square number divisible by $5,10,15,20 and 25$  is 900.