Highest Common Factor of 1220, 4120 using Euclid's algorithm

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


HCF Calculator using the Euclid Division Algorithm helps you to find the Highest common factor (HCF) easily for 1220, 4120 i.e. 20 the largest integer that leaves a remainder zero for all numbers.

HCF of 1220, 4120 is 20 the largest number which exactly divides all the numbers i.e. where the remainder is zero. Let us get into the working of this example.

Consider we have numbers 1220, 4120 and we need to find the HCF of these numbers. To do so, we need to choose the largest integer first and then as per Euclid's Division Lemma a = bq + r where 0 ≤ r ≤ b

Highest common factor (HCF) of 1220, 4120 is 20.

HCF(1220, 4120) = 20

HCF of 1220, 4120 using Euclid's algorithm

Highest common factor or Highest common divisor (hcd) can be calculated by Euclid's algotithm.

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Highest common factor (HCF) of 1220, 4120 is 20.

Highest Common Factor of 1220,4120 using Euclid's algorithm

Highest Common Factor of 1220,4120 is 20

Step 1: Since 4120 > 1220, we apply the division lemma to 4120 and 1220, to get

4120 = 1220 x 3 + 460

Step 2: Since the reminder 1220 ≠ 0, we apply division lemma to 460 and 1220, to get

1220 = 460 x 2 + 300

Step 3: We consider the new divisor 460 and the new remainder 300, and apply the division lemma to get

460 = 300 x 1 + 160

We consider the new divisor 300 and the new remainder 160,and apply the division lemma to get

300 = 160 x 1 + 140

We consider the new divisor 160 and the new remainder 140,and apply the division lemma to get

160 = 140 x 1 + 20

We consider the new divisor 140 and the new remainder 20,and apply the division lemma to get

140 = 20 x 7 + 0

The remainder has now become zero, so our procedure stops. Since the divisor at this stage is 20, the HCF of 1220 and 4120 is 20

Notice that 20 = HCF(140,20) = HCF(160,140) = HCF(300,160) = HCF(460,300) = HCF(1220,460) = HCF(4120,1220) .

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Frequently Asked Questions on HCF of 1220, 4120 using Euclid's Algorithm

1. What is the Euclid division algorithm?

Answer: Euclid's Division Algorithm is a technique to compute the Highest Common Factor (HCF) of given positive integers.

2. what is the HCF of 1220, 4120?

Answer: HCF of 1220, 4120 is 20 the largest number that divides all the numbers leaving a remainder zero.

3. How to find HCF of 1220, 4120 using Euclid's Algorithm?

Answer: For arbitrary numbers 1220, 4120 apply Euclid’s Division Lemma in succession until you obtain a remainder zero. HCF is the remainder in the last but one step.