Home › UP Board Class 10 › Mathematics › Given that $\operatorname{HCF}(306,657)=9$, what…
Given that $\operatorname{HCF}(306,657)=9$, what is $\operatorname{LCM}(306,657)$?
A$22338$
B$204$
C$21318$
D$19998$
Answer & Solution
Correct answer: A. $22338$
Use $\operatorname{HCF}(a,b)\times \operatorname{LCM}(a,b)=a\times b$. Thus,
$$
\operatorname{LCM}(306,657)=\frac{306\times 657}{9}.
$$
Now $306\div 9=34$, so the LCM is $34\times 657=22338$.
Related questions
What is the derivative of $x^x$ for $x>0$?If $y=x^{\tan^{-1}x}$, then $\dfrac{dy}{dx}$ equalsThe derivative of $ in^{-1}x$ isThe derivative of $\cos^{-1}x$ isWhat is $\dfrac{d}{dx}(\tan^{-1}x)$?If $y=\dfrac{1}{x^n}$, then $\dfrac{dy}{dx}$ isWhich identity is correct?For the expression $ qrt{1-x^2}$, a useful trigonometric substitution is