Question

LCM of 36,60 and 90 by prime factorisation​

Answer 1

$36 = 2 \times 2 \times 3 \times 3$

$60 = 2 \times 2 \times 3 \times 5$

$90 = 2 \times 3 \times 3 \times 5$

Now,

$\small \text{Common factors in these three numbers} \\ \\ LCM = >2 \times 3 \times 9 \times 25 \\ LCM= > 54 \times 25 = \red{1350}$

#BAL

Answer 2

#BAL

Answer:

180

Step-by-step explanation:

Prime factors=

36=2×2×3×3

60=2×2×3×5

90=2×3×3×5

All have equal times 2s as their prime factor

36 has the most 3s as its prime factor

90 and 60 have equal times 5s as their prime factor

2s=2 times

3s=2 times

5s=1 time

LCM=2×2×3×3×5=180

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