Question

Find the greatest number that divides each of $180$, $225$ and $315$ completely.

Answer 1

Step: Find $H.C.F.$ of $180,225$ and $315$

The greatest number that divides $180,225$ and $315$ will be $H.C.F.$ of $180,225$ and $315$.
By division method,
By division method,

Since the last division is $45$,
So, the $H.C.F.$ of $180,225$ and $315$ is $45.$

Hence, the greatest number that divides each of $180,225$ and $315$ completely is $45$.