Question

Find the smallest square number,which is divisible by each 9,15,20.

Full explanation

Answer 1

Answer:

180

Step-by-step explanation:

It's not a square no. but it is divisible by 9, 15 and 20

Answer 2

Correct Question:-

Find the smallest square number,which is divisible by each 9,15,20.

Answer:-

= 30.

Explanation:-

Frist you have to find the lcm of the given numbers that is 9, 15 and 20

To find lcm

$= > 2 \times 2 \times 3 \times 3 \times 5 = 180$

So we will consider 180 as prime Factorization.

Now, Simply 180×5 = 900.

So the Square root of 900 will be 30 .

(if you don't know how to find square root of 900 you can refer the attachment)

Hence, 30 is the smallest square number,which is divisible by each 9,15,20.

Thanks !