Q1 of 104 Page 2

Using Euclid’s division algorithm, find the HCF of

8840 and 23120

Given numbers are 8840 and 23120


Here, 23120 > 8840


So, we divide 23120 by 8840


By using Euclid’s division lemma, we get


23120 = 8840 × 2 + 5440


Here, r = 5440 ≠ 0.


On taking 8840 as dividend and 5440 as the divisor and we apply Euclid’s division lemma, we get


8840 = 5440 × 1 + 3400


Here, r = 3400 ≠ 0


On taking 5440 as dividend and 3400 as the divisor and again we apply Euclid’s division lemma, we get


5440 = 3400 × 1 + 2040


Here, r = 2040 ≠ 0.


On taking 3400 as dividend and 2040 as the divisor and we apply Euclid’s division lemma, we get


3400 = 2040 × 1 + 1360


Here, r = 1360 ≠ 0


So, on taking 2040 as dividend and 1360 as the divisor and again we apply Euclid’s division lemma, we get


2040 = 1360 × 1 + 680


Here, r = 680 ≠ 0


So, on taking 1360 as dividend and 680 as the divisor and again we apply Euclid’s division lemma, we get


1360 = 680 × 2 + 0


The remainder has now become 0, so our procedure stops. Since the divisor at this last stage is 680, the HCF of 8840 and 23120 is 680.


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