Find HCF(8,9,25) LCM(8,9,25). - Vidyadip

MCQ

Find $\operatorname{HCF}(8,9,25) \times \operatorname{LCM}(8,9,25)$.

A
500
✓
1800
C
1810
D
1500

✓

Answer

Correct option: B.

1800

(b) : We have, $8=2 \times 2 \times 2$,
$9=3 \times 3,25=5 \times 5$
$\operatorname{HCF}(8,9,25)=1$ and $\operatorname{LCM}(8,9,25)=2^3 \times 3^2 \times 5^2=1800$
$\therefore \operatorname{HCF}(8,9,25) \times \operatorname{LCM}(8,9,25)=1 \times 1800=1800$

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