1.

135.225 hcf lcm

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https://www.sarthaks.com/2054/use-euclids-division-algorithm-to-find-the-hcf-of-135-and-225-ii-196-and-38220-iii-867-and-255

135 and 225 
Since 225 > 135, we apply the division lemma to 225 and 135 to obtain 
225 = 135 × 1 + 90 
Since remainder 90 ≠ 0, we apply the division lemma to 135 and 90 to obtain 
135 = 90 × 1 + 45 
We consider the new divisor 90 and new remainder 45, and apply the division lemma to obtain 
90 = 2 × 45 + 0 
Since the remainder is zero, the process stops. 
Since the divisor at this stage is 45, 
Therefore, the HCF of 135 and 225 is 45. 


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