Question

Find the lcm of 25 ,90 and 180 by long division method and answer should be 900

Answer 1

Answer is attached here.

Answer 2

Step-by-step explanation:

Given: 25,90 and 180

To find: Find LCM using long division method.

Solution:

Start dividing the number by prime factors.

2 | 25,90,180

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2 | 25,45,90

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3 | 25,45,45

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3 | 25,15,15

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5 | 25,5,5

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5 | 5,1,1

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| 1,1,1

LCM(25,90,180)= 2×2×3×3×5×5

LCM(25,90,180)= 4×9×25

LCM(25,90,180)= 36×25

LCM(25,90,180)= 900

Final answer:

LCM(25,90,180)= 900

Hope it helps you.

To learn more:

Using Euclid’s division algorithm find the HCF of 95634 and 15180

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